[waynf]

Just curious! on a JPG, what are the dimensions of a pixel, or how many to the square inch, which is sometimes indicated on PRINT confirmation dialogue box.

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that question has no set answer because you are assuming pixels are a fixed measurement...think of pixels as a density, rather than dimension.

A picture can have varying numbers of pixels, just like a monitor can, The same monitor supports 800 by 600 pixels, 1024 by 768 pixels....

a high quality image may have higher pixels per inch then a low quality image.

[gerryf]

that question has no set answer because you are assuming pixels are a fixed measurement...think of pixels as a density, rather than dimension.

A picture can have varying numbers of pixels, just like a monitor can, The same monitor supports 800 by 600 pixels, 1024 by 768 pixels....

a high quality image may have higher pixels per inch then a low quality image.

[waynf]

The reason I asked this was that sometimes qualitative numbers for jpg's are given in pixels and sometimes in KB. But I see what you're getting at and thankyou.