greyscale(6D)
greyscale - make different patterns
As shipped in IRIX 6.5.7. Unchanged since IRIX 6.5.
NAME greyscale - make different patterns SYNOPSIS greyscale outimage.bw xsize ysize patternno DESCRIPTION greyscale generates a variety of different patterns. A monochrome image is created that is xsize by ysize pixels in size. patternno selects what kind of image is created. Patternno Description _________________________________________________ 0 ramp [0...255] in the X direction 1 ramp [0...255] in the y direction 2 circular ramp pattern 3 all white image of 255 4 horizontail stripes white and black All black except 1% of pixels are in the range [128...255] 5 6 black and white checker board pattern 7 grid pattern 8 gamma test pattern 9 gaussian in the x direction 10 gaussian in the y direction 11 contrast test image 12 all black image 13 all white image 14 random noise image 15 circle 16 rolf 17 sinusoidal line test image 18 Bayer threshold image for dithering SEE ALSO gamcal(6D), gamma(6D)