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Graphics > What the best Interpolation Filter for best results?

#69602 - bmnb1234 - Tue Jan 31, 2006 7:37 pm

Hi am using a tool to convert my 32bit jpeg textures to 8bit BMP files advanced batch converter. What the best Interpolation Filter for best results? Here is a list below.

Interpol
Bicubic
Triangle
hermite
Bell
BSpline
Lanczos3
Mitchell
Nearest
Linear
FastLinear
Bilinear

Thank you for your time !

Jason Rivard

http://www.gold-software.com/tgaconverter.html

#69621 - nmain - Tue Jan 31, 2006 9:10 pm

bmnb1234 wrote:
Hi am using a tool to convert my 32bit jpeg textures to 8bit BMP files advanced batch converter. What the best Interpolation Filter for best results? Here is a list below.

Interpol
Bicubic
Triangle
hermite
Bell
BSpline
Lanczos3
Mitchell
Nearest
Linear
FastLinear
Bilinear

Thank you for your time !

Jason Rivard

http://www.gold-software.com/tgaconverter.html


There are so many different filters available in image manipulation products precisely because there is no one-size-fits-all best filter for every situation. The best graphics will be hand retouched in whatever bit depth and size the target format is. Barring that, experiment. If your image program supports batch conversion, and the inclusion of binary files into your rom images is by an automated script (which can be done regardless of what method you use), it shouldn't be too much trouble to try out a lot of different options and see what they look like on emulators; then take a subset of those and see what they look like on real hardware.

Since you're doing a color depth reduction, however, the most important thing is to have good palette(s). The best algorithm will produce crappy results when it tries to dither an image to a palette ill-suited for it.

#69753 - bmnb1234 - Wed Feb 01, 2006 6:06 pm

do have an app that you would recomend for post work?