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| | Scanning, Resolution and dpi |
 | | In the first scan at 100 dots per inch the file in your computer will have (600)*(400)=240,000 total pixels. | | | In the second scan at 200 dots per inch the file in your computer will have (1200)*(800)=960,000 total pixels. | | | If you take a normal 6" X 4" photograph and scan it in at 100 dots per inch you'll end up with a picture in your computer that is 600 X 400 pixels. |
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http://www.dallas.net/~mothman/shell/resolution.htm
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| | Laser Light Photographics and Printmaking |
| | "Pixels per inch" refers to the number of pixels that are in a digital file. | | | For example, a printer may be referred to as 1440 x720 dpi. | | | If the RGB file is an 8x10 at 200 ppi the files size is 9.16 MB. |
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http://www.laslight.com/faq-lpi-dpi-ppi.htm
(929 words)
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| | Photoshop for Astrophotographers |
| | In some cases, such as with computer monitors, film recorders, and LightJet photographic printers, there is a 1:1 relation between the PPI of the digital image file and the DPI of the output device. | | | Lets take an example of a sharp fine-grained 35mm transparency original scanned at 2700 pixels per inch of true optical resolution. | | | 1 x 1.5 inches at 4000 pixels per inch on a film recorder = 4000 x 6000 pixels = 68.7mb file. |
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http://www.astropix.com/PFA/SAMPLE5/SAMPLE5.HTM
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| | pixels |
| | While the term ‘pixel’ did not yet exist in the early halftone days, in fact each halftone dot was a pixel, and a halftone image can be analyzed by the same mathematics used to analyze digital images. | | | The second means the action of creating a hard-copy of an image from your computer on your computer’s printer- usually an ink-jet or a laser printer. | | | Some software, if it encounters a file that does not contain a physical size, will by default assign a value of 72 pixels per inch (again, that holdover from the early days of computer graphic arts). |
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http://www.usfamily.net/web/stauffer/pixels.html
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| | Hardware - Monitor2 |
| | Notice I had to calculate pixels per inch - and that s why no one uses it except for images where the software calculates it for you. | | | I used the dot triads per pixel table that I had calculated earlier for her monitor, so that I could list how many dot triads appear in each 6x6 pixel image. | | | For example, the 640x480 snapshot shows 70 dot triads, but only 14 slats. |
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http://www.infocellar.com/hardware/monitor2.htm
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| | "The Resolution's Too Low" - The Web Developer's Journal |
| | As we've already mentioned, graphics software like Photoshop generally sees one pixel as one dot, so it's effectively working in ppi and dpi at the same time. | | | The main problem with printing Web graphics is that as they're transferred to the print environment, ppi become dpi. | | | Keeping Quality Up The key to quality is to transfer the screenshot or graphic into a print format in the best way possible. |
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http://www.webdevelopersjournal.com/columns/ajs_resolution.html
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| | Canon Digital Photography Forums - dots per inch |
| | The 'Pixels per inch' rate mentioned by editing programs like Photoshop has no influence on printing dimensions at all, only the actual number of vertical and horizontal pixels has. | | | The only 'dimensions' a digital picture in a computer has are the exact number of pixels it is made of. | | | Thus, you'll still need a minimum of 150 and optimally at least 240 pixels per inch of print to get good quality. |
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http://photography-on-the.net/forum/printthread.php?t=71802
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| | CSA Newsletter, Winter '01: Scanning Drawings |
| | A drawing scanned at 150 d.p.i., for instance, would be more than twice as wide on a computer as on paper, since the 150 points scanned in each inch would need more than two inches of screen pixels for display (two inches at 72 pixels per inch yields 144 pixels). | | | Were the image to be made larger still, for example, doubled in width, the computer would have to create a value for every alternate pixel; the file would contain no data for those pixels. | | | Since the original was a photocopy rather than one of the originals, all scans were done as black-and-white scans, not gray-scale. |
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http://csanet.org/newsletter/winter01/nlw0106.html
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| | SCANNING For Web and Printer |
| | When you create an image, or change the size of an image in Photoshop, and in some other graphics editors, it asks you to enter the image size you want to create in pixels, but it also lists a number for "resolution." The resolution number is used during printing to control the output size. | | | The file size of the 200 dpi scan is not twice as big as the 100 dpi scan, it is 4 times larger as the graphic to the right will show. | | | A large image that is scanned at a high resolution creates a file size that is so large it will either print too slowly or may fail to print at all. |
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http://www.indiana.edu/~econweb/scanning2.html
(1386 words)
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| | Debunking the DPI myth: Why you can ignore dots per inch in photo editing and printing |
| | It always changes the dot pattern of each photo it prints, so trying to match up DPI settings between your images and your printer doesn't help. | | | But telling Photoshop Elements to resample the image instructs the software to do much more than change the DPI setting. | | | Professionals who work with image-editing software day after day probably think I've lost my mind. |
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http://aroundcny.com/technofile/texts/tec122103.html
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| | Untitled Document |
| | Raster Graphics are used in applications such as Photoshop and Painter, and are created by hardware such as scanners and digital cameras. | | | But if you stated that you were working on a web graphic that was 3" X 3" at 72 dpi you would also be correct. | | | The concepts used to understand raster graphics are useful in understanding how your monitor and video card work. |
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http://www.hcs.ohiou.edu/faculty/matthews_d/tutorials/raster/bsk.raster.htm
(1590 words)
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| | How Can You Have "Dots Per Inch" if You Don't Have Inches? - Photo Tips @ Earthbound Light |
| | It's really just a bunch of data in your computer and doesn't have a physical size in inches. | | | In each, the pixels never change, only the way I would be interpreting them would. | | | When you open image files from your digital camera, are they 240dpi, or are they 300dpi? |
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http://www.earthboundlight.com/phototips/dots-per-inch-resolution.html?source=rss
(687 words)
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| | Howstuffworks "My scanner has a resolution of 9,600x1,200 dpi -- what do those numbers mean?" |
| | Let's take a simple example: If a scanner's resolution is 300x300 dpi, and that scanner is capable of scanning a letter-sized (8.5x11-inch) document, then the CCD has 2,550 sensors arranged in each horizontal row -- 8.5 (inches across) x 300 (x-direction sampling rate) = 2,550. | | | The number of elements in the CCD array (above) determines the x-direction resolution. | | | My scanner has a resolution of 9,600x1,200 dpi -- what do those numbers mean? |
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http://computer.howstuffworks.com/question689.htm
(413 words)
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| | FAQs on raster to vector conversion software - TracTrix |
| | By comparing adjacent dots captured in a true 200 dpi scan interpolation software might replace each dot with four new ones (creating a 400 dpi interpolation) or even nine new ones (creating a 600 dpi interpolation). | | | Using a Fax image: We know of users who fax drawings to their computer's fax modem (using the fine setting) and open the stored fax image in TracTrix to create vectors. | | | Raster files are stored in many file formats. |
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http://www.trixsystems.com/ttfaqs.html
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| | VT100.net: Terminals & Printers Handbook Chapter 15 |
| | With positional resolution, characters (bit maps invoked with a single code) will be placed on even pixel positions in the scan direction (long edge of the paper). | | | Using electrophotographic technology, the LN01 prints one page at a time, up to a maximum of 12 pages per minute. | | | Minimum print area and positional resolution are important factors to consider. |
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http://vt100.net/docs/tp83/chapter15.html
(2467 words)
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| | Dots per inch - Wikipedia, the free encyclopedia |
| | The number of pixels per inch in a computer display is sometimes specified in this way as well. | | | When someone asks for a "300 DPI image", they may be expecting an image with 300 pixels per inch of printed output; unless the size of the printed output is known beforehand, the measurement is meaningless. | | | A 10×10-pixel image on a computer display may require many more than 10×10 printer dots to accurately reproduce, due to limitations of available ink colors in the printer. |
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http://en.wikipedia.org/wiki/Dots_per_inch
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| | Imaging Nuggets: Comparing Pixels and Dots-per-Inch |
| | A common pixel array for slide scanners is 2000 x 3000. | | | From the slide of a 24" x 36" map, we could expect a resolution of 83 dpi. | | | Q: I've been looking at digital cameras and noticed that specifications for resolution are given in pixels rather than dots per inch. |
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http://www.amigos.org/preservation/ImNuggPixelsandDots-per-Inch.html
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| | MVPix.com : MVPix Help > How do I calculate dots per square inch (DPI)? |
| | This means that if you print a digital image measuring 2048 x 1536 onto a paper measuring 7.5" x 10" (rounded), you will have a 212 DPI print. | | | This means you need a digital image at least 2100 x 1500 pixels to get 300 DPI on a 5" x 7" print. | | | Let's say you wanted to know the print size at 212 DPI for a digital image measuring 2048 x 1536 (3.1MP). |
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http://www.mvpix.com/help/archives/prints/how-do-i-calculate-dots-per-square-inch-dpi.html
(262 words)
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| | Pixels per inch - Wikipedia, the free encyclopedia |
| | This measurement is often referred to as dots per inch, though that measurement more accurately refers to the resolution of a computer printer. | | | Typical circa-2000 cathode ray tube computer displays are generally capable of 72 to 130 pixels per inch. | | | The dot pitch of a computer display determines the absolute limit of possible pixel density. |
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http://en.wikipedia.org/wiki/Pixels_per_inch
(468 words)
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| | Web vs. Print, Image Resolution, Image Quality, GIF, JPG, Dots Per Inch, DPI, 72 dpi, 300 dpi, Image Compression, ... |
| | When we design a web page, unfortunately, the end user is not looking at ink on paper, they are looking at a computer monitor or a television set. | | | The colors cyan, magenta, yellow, and black, can be applied in tiny dots which then optically blend when viewed from a distance. | | | This RGB system has its own spectrum, which does not always overlap with the CMYK and Pantone systems. |
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http://www.design-works.com/resources/web_graphics_v_print_graphics.htm
(453 words)
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| | [No title] |
| | For example, a design can now be created using a DPI of for example, | | | The same design cannot be created on multiple conventional weave constructions. | | | The fineness and detail of the design (dots per inch) are tied into and dependent upon the construction of the weave. |
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http://www.wipo.int/cgi-pct/guest/getbykey5?KEY=01/96643.011220&ELEMENT_SET=DECL
(4970 words)
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| | Pixels per Inch vs. Dots per Inch as it pertains to printing |
| | The level of detail reproduction will be comparable to a photographic print. | | | The level >of detail reproduction will be comparable to a photographic >print. | | | To get a decent inkjet print you must print at no less than 150 pixels per inch and, better, at 200 pixels per inch. |
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http://www.forum4designers.com/message152780.html
(2196 words)
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| | DPI, Dots Per Inch, explained. |
| | But wait, if you use a program like Paint Shop Pro or Photoshop you can zoom into these images. | | | How to create tiles for web pages and computer wallpaper using Gliftic | | | PPI is simply how many pixels are printed per inch of paper. |
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http://www.ransen.com/Articles/DPI
(603 words)
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| | How to Convert DPI to Pixels |
| | I would like to evaluate scanner resolution (ie. | | | It may help, but I would always check the optical | | | knowledgeable of what it is capable of printing in terms of "lines per inch" |
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http://www.biotech.ufl.edu/EM/data/pixi_vs_dpi.html
(412 words)
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| | PICTURE SIZES RESOLUTION |
| | Most often used when referring to optical scanners or digital camera's, optical resolution is the visible, or physical, resolution at which a given device captures an image. | | | The high number of dots per square inch required to produce a high-quality image in printing or on a computer display screen. | | | The computer monitor only displays 90 dots in every inch but interprets picture information based on total dots and opens the picture as 3600dots X 2050dots not 6" X 3.42" that the picture is defined as. |
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http://www.islandnet.com/~buzz/pictures.htm
(473 words)
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| | High Resolution Computer Displays |
| | Common computer displays have a resolution of 75 or 100 (3 or 4 pixels/mm) pixels per inch. | | | I hold books more closely than I sit from my computer screen — round about 16 inches (40 cm) from my eyes. | | | 15 inch (~40 cm) displays will grow from 1024x768 pixels to 6000x4500 or 12000x9000 pixels. |
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http://www.rattlesnake.com/notions/high-resolution.html
(663 words)
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| | San Diego Union Tribune |
| | In many newspapers, files may contain no fewer than 170 pixels per inch to achieve the highest resolution desired for printing. | | | A standard printing term referring to the number of rows of dots per inch. | | | In the printing process, each dot in a screened area (such as a halftone) increases in size by 30 percent due to the way ink is absorbed by newsprint. |
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http://www.utads.com/advertise/guideline/terms.html
(763 words)
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| | Leica Forum: Why pixels/dots per inch and not cm? |
| | For example, a file scanned at res 12 is scanned at 12 sample points (pixels) per millimiter - which is 120 sample points per centimeter, or - in common usage - 304.8 sample points per inch." | | | Real Eastate agents still use acres to describe size, probably because there are more of them than hectares. | | | They might refer to it as stops per dunny. |
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http://www.leica-camera.com/discus_e/messages/3/126803.html?1114200659
(421 words)
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| | 7. The Arithmetic of Printing Images |
| | This figure and Part 3b on the Excel worksheet "Image Size Calculator" calculates the dpi of a print when you use a program that automatically resizes a file for printing. | | | Normally you don’t have to change the number of pixel’s in an image to change the size of a printout. | | | This graphic shows how a 640 x 480 image displays or prints on devices with different dots per inch. |
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http://www.shortcourses.com/pixels/printed.htm
(1003 words)
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| | UserFriendly May 1998 - Tutor |
| | Without knowing the resolution, it is impossible to determine the size when it is imported into a drawing program. | | | Image size in bitmaps used in photo-editing programs is traditionally measured in pixels. | | | In a vector-based program, an image’s size is described in inches in the United States. |
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http://www.tylersterritory.com/computer/uf/5uf-tutor.html
(840 words)
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| | Dr. Gizmo: iPhoto's storage, monitor dots per inch |
| | I've been to three computer stores and a dozen Web sites trying to get the answer to a puzzle posed by one of my students. | | | Here's the puzzle: If User A has a 15-inch computer monitor and User B has a 21-inch monitor, does User B's monitor have more pixels per inch? | | | In other words, larger display screens usually have more pixels per inch. |
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http://aroundcny.com/technofile/texts/giz112002.html
(425 words)
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| | Classical Atlas Project: Map 86 Segments |
| | Close-up from Map 86 showing the environs of Amastris / Sesamos south to the environs of Krateia / Flaviopolis / *Aggripeia?. | | | Close-up from Map 86 showing the environs of Heraclea and the Myriandynus Sinus south to the Gallos river. | | | Close-up from Map 86 showing the environs of Bithynion / Claudiopolis / Hadriana, illustrating the representation of both modern and ancient place names, indication of periodicity through colored underlining, various point and line symbols (locations both certain and less certain). |
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http://www.unc.edu/depts/cl_atlas/examples/map86.html
(255 words)
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| | PRINTERS |
| | A printer that has all necessary components to support multiple users on a network. | | | The number of dots per inch a device is capable of recognizing or producing. | | | A printing feature that uses fewer pins (72 dots per inch) to create each character on a page therefore speeding up printing. |
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http://www.cs.wright.edu/bie/rehabengr/Comp2/printers.htm
(874 words)
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| | Autodesk - Autodesk 3ds Max - Adjusting the dots per inch (DPI) setting for still image outputs |
| | If rendering to an Encapsulated PostScript format is not a viable solution, and you need to use a more common file type such as TGA, TIF, or JPG, you will then have to use another tool such as Adobe ® Photoshop ® to make adjustments to the dots per inch range. | | | Adjusting the dots per inch (DPI) setting for still image outputs | | | Most of the file formats in 3ds max and Autodesk VIZ have a default dot per inch setting of 72 dpi. |
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http://usa.autodesk.com/adsk/servlet/ps/item?siteID=123112&id=5581921&linkID=5573345
(352 words)
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| | [Jewelry making - Article 00443] - Re: [Orchid] Electronic image dpi |
| | This is, by the way, an 8.64 megapixel file size. | | | If you have eliminated all waste space before taking the picture, which is always a good idea, then you can always go with the 2400 dots per inch resolution to end up with a 300 dpi 8 x 10 image. | | | Be aware that this scan resolution is for the full image being used in the 8 x 10 inch size. |
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http://www.ganoksin.com/orchid/archive/200207/msg00443.htm
(447 words)
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| | Zebra 105S Thermal Transfer Printer - Data Sheet |
| | This is achieved through a combination of 32-bit processing and ZPL II® programming, offering the ability to format while printing. | | | Whatever symbology you require, Zebra can fill your needs. | | | All this, plus print speeds up to 6" (152mm) per second, make the Zebra 105S printer the ideal choice for fast, economical label throughput. |
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http://www.incodenet.com/zebra/zebra105.htm
(690 words)
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| | EE381K Multidimensional DSP - Halftoning |
| | Throughput calculations for a high-end laser printer for printing 8.5" by 11" pages at 24 pages per minute: | | | The way that dots per inch is computed by first printing a line of four dots, then printing a line of three dots right under it, and the difference in lengths is taken as the size of one dot. | | | At 600 dpi and higher, a printer is not really able to render an isolated single dot. |
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http://www.ece.utexas.edu/~bevans/courses/ee381k/lectures/16_Halftoning
(199 words)
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| |
| | Resolution |
| | The resolution of a digital file is a single number expressed as pixels per inch (ppi). | | | For example, I can have a digital image that is 360ppi and is 1.5 inches wide and 1.0 inch high, or 540 pixels wide by 360 pixels high. | | | For example, my scanned images have a resolution of 4000 ppi. |
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http://www.zuberphotographics.com/page_Resolution.htm
(650 words)
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| | [No title] |
| | Eventually, as the digitizing process continues, the already digitized images should be available quickly, but orders for images from rolls that have yet to be digitized are likely to take a rather long time. | | | The standard DPI for digitized products will be 600. | | | No. The digitized products will not be georectified. |
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http://edcwww.cr.usgs.gov/products/aerial/digifaq.doc
(774 words)
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| | DPI Or Dots Per Inch |
| | The term DPI can also be used used to specify a printing device's native output resolution. | | | PPI stands for Pixels Per Inch and represents the number of pixels per linear inch on a photo print when a digital image's pixels are scaled onto paper. | | | A simple example would be an image with dimensions of 1200 pixels by 1800 pixels with an assigned print resolution of 300 PPI would print to 4 by 6 inches. |
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http://www.sphoto.com/homedd/dpi-ppi.html
(395 words)
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| | File Size Examples |
| | The size of digital files is generally related to the amount of detail included in the file. | | | A photo can be digitized at a wide variety of resolutions; a 300-dots-per-inch version will contains 90,000 separate dots (or pixels) per square inch, while the same image digitized at 72 dots per square inch has only about 5200 dots per square inch. | | | The higher-resolution image will look much better, but takes longer to transmit, occupies more storage space, and takes more processing power to display and edit. |
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http://www.facsnet.org/tools/sci_tech/tech/fundaments/examples2.php3
(424 words)
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| | Define dots per inch - a Whatis.com definition - see also: dpi |
| | 1) In computers, dots per inch (dpi) is a measure of the sharpness (that is, the density of illuminated points) on a display screen. | | | The dots per inch for a given picture resolution will differ based on the overall screen size since the same number of pixels are being spread out over a different space. | | | Some users prefer the term "pixels per inch (ppi)" as a measure of display image sharpness, reserving dpi for use with the print medium. |
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http://searchsmb.techtarget.com/sDefinition/0,,sid44_gci213912,00.html
(244 words)
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| | PPI vs PPP |
| | This setting is a single number stored as part of the JPG file, and is used my most programs in determining the scale at which to print the image. | | | Many graphics programs and browsers refer to this setting discussed above as dots per inch. | | | Most printers can render many more dots per inch than the pixels per inch we call on them to print. |
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http://www.wfu.edu/~matthews/misc/ppi/ppi.html
(411 words)
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| | NTI>Screen Size and Resolution 239.254.9206 |
| | Quite simply, we're looking at the difference between how many dots per inch the computer is trying to display and how many dots per inch the monitor can show before they start running into each other. | | | For example, a 640-by-480 pixel screen is capable of displaying 640 distinct dots on each of 480 lines, or about 300,000 pixels. | | | This means it can print 90,000 dots per square inch. |
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http://www.naplestech.com/pages/resolution.htm
(580 words)
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| | DT Studios - Resolution |
| | Maximum resolution refers to the smallest dot that an output device can produce. | | | Using too high a resolution (pixels smaller than what the output device can produce) increases the file size and slows the printing of the image; furthermore, the device will be unable to print the image at the high resolution. | | | Because the monitor can display only 72 pixels per inch, it needs 2 inches to display the 144 pixels that make up one edge of the image. |
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http://www.dtstudios.com/resolution.htm
(1118 words)
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| | Article Number T111182001 |
| | An image that is 300 x 300 pixels output to your printer at a resolution of 300 dpi will be 1 inch square (you are squeezing the available 300 dots into one inch in this case). | | | The term dpi (Dots Per Inch) expresses a relation between the number of dots an image is made of and the distance over which it is displayed or printed. | | | The scanned image needs to be 3600 pixels wide. |
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http://www.serif.com/community/techtips/20011111.asp
(520 words)
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| | Dots Per Inch |
| | Defines the number of pixels per inch in the image which using DPI mode. |
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http://www.tailormade.com/webhelp/command_parameters/raster_parameters/raster_parameter_details/dots_per_inch.htm
(14 words)
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| | American Litho, Inc. A National Leader in Commercial Web Printing |
| | DPI - an abbreviation for dots per inch. | | | Refers to the resolution at which a device, such as a monitor or printer, can display text and graphics. | | | When an image is printed, the resolution is controlled by how many dots per inch the printer is capable of printing. |
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http://www.americanlitho.com/glossary.html
(821 words)
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