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Re: [OT] scanned files are large in size




Hi,

tomas wrote:
> > Yep. The one image is encoded as CCITT
> > It compresses much worse than the other which is JPEG,

Anders Andersson wrote:
> Not sure what you mean by "compresses much worse" here, but the CCITT
> version is much smaller than the JPEG version.

Because it uses 1 bit per channel/color whereas the other file uses
8 bpc. The fact that their size ratio is less than 1:8 demonstrates
the lossy compression power of the algorithm used in the 8 bpc image.

kamaraju kusumanchi, the OP, might see differences between both files if
using a viewer that can zoom-in far enough that scan pixels of 1/600 inch
become larger than the screen pixels.


Have a nice day :)

Thomas