bobwilliams wrote:
Let's assume I have a 10MP camera
My sensor is say, 3650 X 2740 pixels.
But say I want to create an image at 1825 x 1370 pixels.
How does the camera actually reduce the 5.0MPs to 2.5MPs
Does it choose groups of 4 pixels and somehow average them out to groups
of 1 pixel each?
How does this process differ from compressing the 10MP image by a factor
of 4.
I know that in one case the image SIZE is reduced (as well as the file
size) whereas in the other case, the image SIZE remains the same but the
file size is reduced.
How exactly does each process affect the appearance of say an 8x10 print.
Bob Williams

OOPS!
I meant to say, How does the camera actually reduce the 10MPs to 2.5MPs?
Bob