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Lossless crop and jpg files
Posted: Mon Oct 04, 2004 6:16 pm
by lawndart
Will lossless crop always result in smaller file sizes?
Sometimes jpg files increase in size after cropping with RC4.
(which I expect when images are reencoded).
Re: Lossless crop and jpg files
Posted: Mon Oct 04, 2004 6:34 pm
by xnview
lawndart wrote:Will lossless crop always result in smaller file sizes?
Sometimes jpg files increase in size after cropping with RC4.
(which I expect when images are reencoded).
Strange, size should be less???? When file size increase?
Pierre.
Posted: Mon Oct 04, 2004 7:31 pm
by lawndart
I think I had some larger jpgs increase in size by a large percent.
Here is a quick test of one jpg just show what my settings are:
800x600x24 161.63 original
(a desktop sreenshot using printscreen imported from windows clipboard)
(saved using xnews;jpg settings quality 94; optimize Huffman table)
(after cropping used 'save as', did not overwrite original)
794x596x24 164.14 crop 1 of original
797x596x24 162.49 crop 2 of original
793x591x24 161.04 crop 3 of original
797x598x24 162.47 crop 4 of original
796x597x24 164.98 crop 5 of original
I can't find "lossless crop"
Posted: Mon Oct 04, 2004 9:22 pm
by Dreamer
I'd like to help too, but I can't find "lossless crop".
Can someone tells me where is it?
Thanks.
Re: I can't find "lossless crop"
Posted: Tue Oct 05, 2004 6:47 am
by xnview
Dreamer wrote:I'd like to help too, but I can't find "lossless crop".
Can someone tells me where is it?
Make a selection, and in jpeg lossless button (toolbar), you have crop
Pierre.
Posted: Tue Oct 05, 2004 6:48 am
by xnview
lawndart wrote:(after cropping used 'save as', did not overwrite original)
You use 'save as' after cropping???
Pierre.
Posted: Tue Oct 05, 2004 7:39 am
by lawndart
xnview wrote:
Make a selection, and in jpeg lossless button (toolbar), you have crop
Pierre.
My mistake. I have been using standard crop function.
I completelely missed the crop option under the jpeg lossless button.
(because it is found under the arrow, not popup transformations screen.)
So both crop functions seem to work as expected.
Posted: Tue Oct 05, 2004 2:15 pm
by Dreamer
lawndart wrote:xnview wrote:
Make a selection, and in jpeg lossless button (toolbar), you have crop
Pierre.
My mistake. I have been using standard crop function.
I completelely missed the crop option under the jpeg lossless button.
(because it is found under the arrow, not popup transformations screen.)
So both crop functions seem to work as expected.
I suggest to add lossless crop to crop button too and to right mouse button - there is crop "normal" only (for possible conflits)
Also it looks, it's working good... thanks Pierre
