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NConvert copy/noop operation?
Posted: Sun Mar 30, 2008 9:38 pm
by Miriam
With this command,
nconvert -q 100 -rotate 0.0 -o that.jpg this.jpg
the output will be larger than the input.
Is it possible to specify a copy operation to make the output identical to the input, except for the file creation time?
Re: NConvert copy/noop operation?
Posted: Mon Mar 31, 2008 12:40 am
by DOS386
Miriam wrote:nconvert -q 100 -rotate 0.0 -o that.jpg this.jpg
Very bad idea
Bloats size, quality loss (minimal), no benefit ...
Lower "q" could approach original size, but would trash quality ...
Probably no, but would be easy to add of you convince Pierre/Xnview about benefits of such a feature
Re: NConvert copy/noop operation?
Posted: Mon Mar 31, 2008 8:35 am
by Miriam
NTOSKRNL_VXE wrote:Probably no, but would be easy to add of you convince Pierre/Xnview about benefits of such a feature
For example, a file which comes out of a digital camera, is often rotated, cropped, and otherwise post-processed in a number of ways. I'm considering how to automate (most of) this processing by entering NConvert command-line strings in an image database. For this purpose, I want a copy/noop option in NConvert.
Of course, I'd be very happy if I could somehow teach XnView to record how I'm processing an image file, and then have XnView emit an NConvert command to do the same thing... but that would be asking a lot, wouldn't it?