# b = ImageBuf()
# ImageBufAlgo.mul (b, make_constimage(64,64,3,oiio.HALF,(.1,.2,.3)),
# make_constimage(64,64,3,oiio.HALF,(.1,.1,.1),20,20))
# write (b, "mul.exr")
# pow
b = ImageBuf()
ImageBufAlgo.pow(b, gray128, 2)
write(b, "cpow1.exr")
b = ImageBuf()
ImageBufAlgo.pow(b, gray128, (2, 2, 1))
write(b, "cpow2.exr")
# channel_sum
b = ImageBuf()
ImageBufAlgo.channel_sum(b, ImageBuf("../oiiotool/tahoe-small.tif"), (0.2126, 0.7152, 0.0722))
write(b, "chsum.tif", oiio.UINT8)
# premult/unpremult
b = make_constimage(100, 100, 4, oiio.FLOAT, (0.1, 0.1, 0.1, 1))
ImageBufAlgo.fill(b, (0.2, 0.2, 0.2, 0.5), oiio.ROI(50, 80, 50, 80))
ImageBufAlgo.unpremult(b, b)
write(b, "unpremult.tif")
ImageBufAlgo.premult(b, b)
write(b, "premult.tif")
b = ImageBuf("../oiiotool/tahoe-small.tif")
ImageBufAlgo.rangecompress(b, b)
write(b, "rangecompress.tif", oiio.UINT8)
ImageBufAlgo.rangeexpand(b, b)
write(b, "rangeexpand.tif", oiio.UINT8)
write(b, "divc1.exr", oiio.HALF)
b = ImageBuf()
ImageBufAlgo.div(b, gray64, (2.0, 1, 0.5))
write(b, "divc2.exr", oiio.HALF)
# pow
b = ImageBuf()
ImageBufAlgo.pow(b, gray128, 2)
write(b, "cpow1.exr")
b = ImageBuf()
ImageBufAlgo.pow(b, gray128, (2, 2, 1))
write(b, "cpow2.exr")
# channel_sum
b = ImageBuf()
ImageBufAlgo.channel_sum(b, ImageBuf("../oiiotool/tahoe-small.tif"),
(.2126, .7152, .0722))
write(b, "chsum.tif", oiio.UINT8)
# premult/unpremult
b = make_constimage(100, 100, 4, oiio.FLOAT, (.1, .1, .1, 1))
ImageBufAlgo.fill(b, (.2, .2, .2, .5), oiio.ROI(50, 80, 50, 80))
ImageBufAlgo.unpremult(b, b)
write(b, "unpremult.tif")
ImageBufAlgo.premult(b, b)
write(b, "premult.tif")
b = ImageBuf("../oiiotool/tahoe-small.tif")
ImageBufAlgo.rangecompress(b, b)
write(b, "rangecompress.tif", oiio.UINT8)
ImageBufAlgo.rangeexpand(b, b)
write(b, "rangeexpand.tif", oiio.UINT8)
a = ImageBuf ("../oiiotool/src/tahoe-small.tif")
b = ImageBuf()
ImageBufAlgo.invert (b, a)
write (b, "invert.tif", oiio.UINT8)
# pow
b = ImageBuf()
ImageBufAlgo.pow (b, gray128, 2)
write (b, "cpow1.exr")
b = ImageBuf()
ImageBufAlgo.pow (b, gray128, (2,2,1))
write (b, "cpow2.exr")
# channel_sum
b = ImageBuf()
ImageBufAlgo.channel_sum (b, ImageBuf("../oiiotool/src/tahoe-small.tif"),
(.2126,.7152,.0722))
write (b, "chsum.tif", oiio.UINT8)
# premult/unpremult
b = make_constimage(100,100,4,oiio.FLOAT,(.1,.1,.1,1))
ImageBufAlgo.fill (b, (.2,.2,.2,.5), oiio.ROI(50,80,50,80))
ImageBufAlgo.unpremult (b, b)
write (b, "unpremult.tif")
ImageBufAlgo.premult (b, b)
write (b, "premult.tif")
b = ImageBuf ("../oiiotool/src/tahoe-small.tif")
ImageBufAlgo.rangecompress (b, b)
write (b, "rangecompress.tif", oiio.UINT8)
ImageBufAlgo.rangeexpand (b, b)
write (b, "rangeexpand.tif", oiio.UINT8)
write(b, "divc2.exr", oiio.HALF)
# invert
a = ImageBuf(OIIO_TESTSUITE_ROOT + "/oiiotool/src/tahoe-small.tif")
b = ImageBufAlgo.invert(a)
write(b, "invert.tif", oiio.UINT8)
# pow
b = ImageBufAlgo.pow(gray128, 2)
write(b, "cpow1.exr")
b = ImageBufAlgo.pow(gray128, (2, 2, 1))
write(b, "cpow2.exr")
# channel_sum
b = ImageBufAlgo.channel_sum(
ImageBuf(OIIO_TESTSUITE_ROOT + "/oiiotool/src/tahoe-small.tif"),
(.2126, .7152, .0722))
write(b, "chsum.tif", oiio.UINT8)
# color_map
b = ImageBufAlgo.color_map(tahoetiny, -1, "inferno")
write(b, "colormap-inferno.tif", oiio.UINT8)
b = ImageBufAlgo.color_map(tahoetiny, -1, 3, 3,
(.25, .25, .25, 0, .5, 0, 1, 0, 0))
write(b, "colormap-custom.tif", oiio.UINT8)
# premult/unpremult
b = make_constimage(100, 100, 4, oiio.FLOAT, (.1, .1, .1, 1))
ImageBufAlgo.fill(b, (.2, .2, .2, .5), oiio.ROI(50, 80, 50, 80))
b = ImageBufAlgo.unpremult(b)
write(b, "unpremult.tif")
write(b, "divc2.exr", oiio.HALF)
# invert
a = ImageBuf(OIIO_TESTSUITE_ROOT + "/common/tahoe-small.tif")
b = ImageBufAlgo.invert(a)
write(b, "invert.tif", oiio.UINT8)
# pow
b = ImageBufAlgo.pow(gray128, 2)
write(b, "cpow1.exr")
b = ImageBufAlgo.pow(gray128, (2, 2, 1))
write(b, "cpow2.exr")
# channel_sum
b = ImageBufAlgo.channel_sum(
ImageBuf(OIIO_TESTSUITE_ROOT + "/common/tahoe-small.tif"),
(.2126, .7152, .0722))
write(b, "chsum.tif", oiio.UINT8)
# min, max (per element)
lrramp64 = ImageBufAlgo.fill((0, 0, 0), (1, 1, 1), (0, 0, 0), (1, 1, 1),
oiio.ROI(0, 64, 0, 64, 0, 1, 0, 3))
b = ImageBufAlgo.max(lrramp64, gray64)
write(b, "maximg.tif", oiio.UINT8)
b = ImageBufAlgo.max(lrramp64, (0.25, 0.25, 0.25))
write(b, "maxval.tif", oiio.UINT8)
b = ImageBufAlgo.min(lrramp64, gray64)
write(b, "minimg.tif", oiio.UINT8)
b = ImageBufAlgo.min(lrramp64, (0.25, 0.25, 0.25))
write(b, "minval.tif", oiio.UINT8)
