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I was basically just curious solely driven by my own laziness. It's good to hear some interesting responses.
I prefer to crop by eye and then use canvas size, just in case I want to preserve some details after all and make the canvas size bigger again to fill in the left over edge rather than crop it out. Bits of feet and fingertips come to mind. Can't really get a scan perfectly straight it seems, so there's always something that has to go heh. Ah well. If you want the whole thing buy the book I suppose.
petopeto said: PS is 0.1 degrees from my tests. It rounds the number, so it actually "switches over" at the 0.05 point.
This is true for layer rotation. Not for canvas rotation. The accuracy is a lot greater here. A small 10000 x 50 or so test with a single line can confirm this. Like so: http://upload.hattix.co.uk/files/longlines.png Outer two lines are 0.1 layer rotation CW and CCW, the inner two are 0.01 canvas rotation CW and CCW.
This can be a pain since you're stuck copying layers out to new images to rotate the whole canvas and then back in. It does work quite well however when there are horizontal (or vertical - it's lots easier when the measure tool fills in your value for you anyway) features.
-- And speaking of PS and GIMP, after seriously breaking things trying to get PSDs to work between the two, I've been using bitmaps. I remember peto said something about tiffs on chat as well but if I recall my dtp classes correctly tiffs are about as hopeless in having no layers or any features, just flat image - the same problems bmp have with less of a size or maybe compatibilty issue. Anything there that can speed things up? Any useful fileformat I'm missing here?
Chrissues
I prefer to crop by eye and then use canvas size, just in case I want to preserve some details after all and make the canvas size bigger again to fill in the left over edge rather than crop it out. Bits of feet and fingertips come to mind. Can't really get a scan perfectly straight it seems, so there's always something that has to go heh. Ah well. If you want the whole thing buy the book I suppose.
This is true for layer rotation. Not for canvas rotation. The accuracy is a lot greater here. A small 10000 x 50 or so test with a single line can confirm this. Like so:
http://upload.hattix.co.uk/files/longlines.png
Outer two lines are 0.1 layer rotation CW and CCW, the inner two are 0.01 canvas rotation CW and CCW.
This can be a pain since you're stuck copying layers out to new images to rotate the whole canvas and then back in. It does work quite well however when there are horizontal (or vertical - it's lots easier when the measure tool fills in your value for you anyway) features.
--
And speaking of PS and GIMP, after seriously breaking things trying to get PSDs to work between the two, I've been using bitmaps. I remember peto said something about tiffs on chat as well but if I recall my dtp classes correctly tiffs are about as hopeless in having no layers or any features, just flat image - the same problems bmp have with less of a size or maybe compatibilty issue.
Anything there that can speed things up? Any useful fileformat I'm missing here?