I still working on my game. The thread "2D fighting game animation frames issues" (http://devster.proboards.com/thread/1282/fighting-game-animation-frames-issues) is about the same project.
I use Imagensis 4000 beta to quantize my tiles alongside SGTD 0.51 beta. I index my images on Photoshop at 16 colors, shrink it, slice it, quantize it on Imagenesis, and remount it on SGTD.
The images stays with well-defined color areas, but in a 3-frame animation, just one frame usually get the correct colors. The other get coloured wrongly/colors go to the wrong areas. I use a single pallette file to the whole animation and I quantize all the frames in one shot/at a one time. Sometime in the past, in a 2-frame animation, the miscolored frame got not so miscolored, but just a little or a half.
Follow my tips: 1* At Photoshop only posterize image to 16 levels and plus bright and constrast +15%, salve as normal PNG. 2* At IrfanView open the png and reduce the color with no transparency and hight quality with arround 16~22 colors,(my favorite is 18), salve it again as image_edit.png 3* Open the image_edit.png with Imagenesis and check-out the magic
The colors still wrong in the 2nd frame, but surely I did a test with only two frames. What do you mean with "posterize image to 16 levels". You'll have to explain. I overwritten the file I processed in Photoshop instead make a duplicate after I worked on it on IrfanView. Is that a problem?
I'm following your steps, and still a bit buggy...
Surely, it's better than before, just 3 colors are wrong.
I decrease the color depth in IrfanView BEFORE the tweaks in Photoshop.
After, I go to IrfanView to shrink the image to 64x96 px.
Should be this the problem?
If you reduce the colors at IrfanView to 18 but Imagenesis still lose 3 colors, so reopen original image at IrfanView and reduce to 22 colors and try it on imagenesis again, if still don't get all 16 colors give more contrast to original image and repeat the process.
After, in Photoshop, I adjust the bright to -20 due to my character has skin and clothes too clear.
Still in Photoshop, I indexed but no posterize because I thought it is too irrevelant.
So, I reduced, sliced, quantized and remounted.
Oruam, you should have said since the very beginning that adjust bright, contrast, posterize, just suits to distinguish colors to the quantizer.
The skin color of my character, if bright is reduced to -20, appears on the graphics if I quantize the first frames. But if I quantize all of them, some of them, I think, make it be confused with white.
The opening still buggy, but this is another problem.
What this does is import your graphics without any hassle. It also does not miscolor your graphics because the RGB values are not multiples of 32 or 36, instead it uses dithering to make it look like there are lots of colors.