>>but there is a noticable difference in the print quality of an image that is 72dpi that has been increased in pixel dimensions to match at print at 300dpi with the same pixel dimensions.
Then the images were not the same: the first one was much smaller: less pixels in it, so one cannot compare. If you compare quality of same size images, printed at the same size, there is NO difference, whatever their "resolutions" are. The resolution is the smallest element an instrument can deal with. This is meaningfull for measure instruments, copying equipment like scanners, or printing equipment. As far as data is concerned, like images, resolution has no meaning and does not exist. What exists for images is the definition. The definition is not a ratio like the resolution, but an absolute number. An image definition is measured by its number of pixels. A better example is with TV sets and TV images. A TV set has a resolution: the distance between two lines to generate the image (vertically). This may be variable depending of the size of the screen. ALL TV images have the same definition: 525 lines vertically (if I remember well), they have NO resolution. The resolution you find inside a JPG image is not the "resolution of the image", it is the resolution at which it has been scanned. This has nothing to do with the resolution you will print the image. Of course, you can set the printer to the same resolution as for the scanner, then you will get an image of the same size, but who said one has to use the same resolution for printing? The printer resolution is set by the user, not by the image. Furthermore, what is the "image resolution" for an image coming from a digital camera? What does it mean "dots per Inch", since there is NO original image?... per inch of WHAT? ;-) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/lists.cfm?link=t:4 Subscription: http://www.houseoffusion.com/lists.cfm?link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. http://www.cfhosting.com
