Okay, I think I get it now. The unfocused image is actually blending from one part into another, and the low-resolution image is, hm, actually sort of missing bits at the edges that would be there in the perfect image? Do I have that right?
Thank you very much for putting up with my questions. I know I'm being a bit of a nuisance...
Pretty much. Sometimes the 'bits missing' are colours, so that a smooth shading from blue to green can become a small block of blue, followed by a greener block of blue, followed by a block of turquoise, etc. It's basically an approximation of (what we percieve to be, but in fact is not) a perfect image. If the 'blocks' are larger and the number of colours are fewer, the resolution is said to be reduced and the image is more distorted.
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Date: 2007-01-19 12:15 am (UTC)Thank you very much for putting up with my questions. I know I'm being a bit of a nuisance...
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Date: 2007-01-19 10:06 am (UTC)no subject
Date: 2007-01-19 10:08 am (UTC)