Convert JPEG color pictures to high-precision grayscale pictures.
Editor: Jpeg2BW is a program using The Well known JPEG library from the Independant JPEG Group and intended to convert JPEG color pictures to high-Precision grayscale pictures. What makes the Jpeg2BW different from other projects is that it performs the whole computation in double precision rather than by rounding each value to some 8-bit integer at each step. The converted black & white pictures are finally encoded to a 16bpp grayscale bitmap file, with about 10 acurate bits for each pixel rather than 8 with current methods (read the following article about this issue). Thus the pictures produced by Jpeg2BW should give about 1,000 significant levels of gray (rather than 256). you can free download Jpeg2BW 0.4.2 now.