HUGE news!!! ( mopar muscle magazine )

In a nutshell - maybe. To understand what happens when printing, think of a screen being laid over the paper. The finer the screen, the more detail the final print picture will have. Most high-quality colour publications will use a screen with 150 or 200 openings per inch. To take advantage of this fine detail, a digital photograph will need double the amount of pixels per inch for the screen. So that would be 300 or 400 pixels per inch (dpi). A 640x480 image would therefore allow full detail at final print size of about 2" x 1".

Using a photoediting program to increase the amount of pixels does not solve the problem. The program simply guesses which color to paint the pixel between the two adjacent pixels as it adds more. So if you have a sharp edge in the picture between blue and yellow, it will guess which colour would create a smooth transition between the two. This could be a green for example, or a lighter blue. This is referred to as interpolation, and although it works ok for some image elements (trees, sky), it makes sharp edges like body lines and black lines appear fuzzy. An image can only be as detailed as the original source.

For a 4x5 print you need 1200x1500dpi with a 150 line screen or 1600x2000dpi for a 200 line screen to achieve proper detail.

Grant