Re: [Gimp-user] what is dpi, ppi and lpi
On Fri, 12 Apr 2002, Amit Mukherjee wrote: Hi, Can anyone tell me the difference between dpi, ppi and lpi ? If my intention is to print a picture measuring 8x10, at what resolution should I scan ? dpi = dots per inch ppi = pixels per inch lpi = lines per inch to know the minimum you need to scan you'll need to know what sort of dpi your printer is capable of printing. Lets say its an ink-jet that'll handle 1000dpi To print an 8x10 without having to scale the image up or down to make it fit you'll need to scan... 8000 x 10,000 pixels! Pretty easy eh? Depending on the software you're printing with you might be able to get a decent print from less. If you're going to be retouching the scan you might want to scan at double or triple the resolution of your printer so you can make really fine corrections and then scale the image down to the maximum size your printer can handle right before you print. Enjoy! -- Jon Winters O O O O O O O History Will Prove us right O B S C U R A http://www.obscurasite.com/jon/ / \ / \ / \ / \ / \ / \ / \ ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] what is dpi, ppi and lpi
Jon == Jon Winters [EMAIL PROTECTED] writes: Jon On Fri, 12 Apr 2002, Amit Mukherjee wrote: Hi, Can anyone tell me the difference between dpi, ppi and lpi ? If my intention is to print a picture measuring 8x10, at what resolution should I scan ? Jon dpi = dots per inch Jon ppi = pixels per inch Jon lpi = lines per inch DPI is normally used for scanners, printers, and monitors. LPI is normally used for half-tone screened images. A 100 LPI half-tone image corresponds to a much higher DPI rating. Jon to know the minimum you need to scan you'll need to know what Jon sort of dpi your printer is capable of printing. Jon Lets say its an ink-jet that'll handle 1000dpi To print an Jon 8x10 without having to scale the image up or down to make it Jon fit you'll need to scan... Jon 8000 x 10,000 pixels! Jon Pretty easy eh? For most practical purposes, 300dpi for a color print is more than good enough. Scaling the image to fill whatever resolution you need for your printer should cause no problems. If you have a 300dpi image (at print scale), and produce a fiery from it, you will be completely happy with the results. For photographs, I typically scan the 35mm negatives at 2400dpi and print up to 8x12 with no perceptible loss. roland -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises [EMAIL PROTECTED] 76-15 113th Street, Apt 3B [EMAIL PROTECTED] Forest Hills, NY 11375 ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
[Gimp-user] what is dpi, ppi and lpi
Hi, Can anyone tell me the difference between dpi, ppi and lpi ? If my intention is to print a picture measuring 8x10, at what resolution should I scan ? Thanks Amit Get fast and easy Internet access through http://www.netkracker.com ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
