- fprintf(stderr,"-F rawWidth,rawHeight,rawComp,rawBitDepth,s/u (Signed/Unsigned)\n");
- fprintf(stderr,"Example: -i lena.raw -o lena.j2k -F 512,512,3,8,u\n");
- fprintf(stderr,"Aborting\n");
+ fprintf(stderr,"-F <width>,<height>,<ncomp>,<bitdepth>,{s,u}@<dx1>x<dy1>:...:<dxn>x<dyn>\n");
+ fprintf(stderr,"If subsampling is omitted, 1x1 is assumed for all components\n");
+ fprintf(stderr,"Example: -i image.raw -o image.j2k -F 512,512,3,8,u@1x1:2x2:2x2\n");
+ fprintf(stderr," for raw 512x512 image with 4:2:0 subsampling\n");
+ fprintf(stderr,"Aborting.\n");