t00fri wrote:I noticed that most contenders seem to ignore how one has to set the
parameters to save a 1024x768 JPG in good quality! Have a look at
ElChristou's image. He is a Pro and thus obviously knows how to do it.
In most of the other images e.g. the text is barely readable anymore.
If you'd try to understand how JPG is organized and what may be
adjusted (besides the quality factor) you'd be surprised about the
differences.
Since JPG is a /lossy/ format one should always compose the image in
a lossless one and convert to JPG only at the very end.
NEVER,never scale a JPG format down! Always do your Celestia
screendump in PNG format, finish your image, scale it with the
best , i.e cubic (GIMP) or Bicubic (PS) interpolation down to
1024x768 and FINALLY convert it to JPG with the settings as
illustrated below.
This just an observation, but otherwise I want to stay out of this...
Bye Fridger
PS:
Here is the JPG saving dialog of GIMP, for example:
Just have a look how well the rather small text is readable in my JPG
here as compared to what one can see above...
1) the quality factor should be about 85% (instead of the default 75%)
2) Subsampling should be 1x1,1x1,1x1, instead of the default 2x2,1x1,1x1!
This is VERY important for text readability!!!
3) DCT method should be floating point instead of integer
With lower resolution like 1024x768 you should also experiment with
the smoothing parameter!!