r = ImageBufAlgo.isConstantColor(b)
print("isConstantColor on pink image is (%.5g %.5g %.5g)" % r)
r = ImageBufAlgo.isConstantColor(checker)
print("isConstantColor on checker is ", r)
b = ImageBuf("cmul1.exr")
print("Is", b.name, "monochrome? ", ImageBufAlgo.isMonochrome(b))
b = ImageBuf("cmul2.exr")
print("Is", b.name, "monochrome? ", ImageBufAlgo.isMonochrome(b))
# color_count
b = ImageBufAlgo.fill(top=(0, 0, 0),
bottom=(1, 1, 1),
roi=ROI(0, 4, 0, 4, 0, 1, 0, 3))
counts = ImageBufAlgo.color_range_check(b, low=0.25, high=(0.5, 0.5, 0.5))
print('color range counts = ', counts)
# nonzero_region
b = make_constimage(256, 256, 3, oiio.UINT8, (0, 0, 0))
ImageBufAlgo.fill(b, (0, 0, 0))
ImageBufAlgo.fill(b, (0, 1, 0), oiio.ROI(100, 180, 100, 180))
print("Nonzero region is: ", ImageBufAlgo.nonzero_region(b))
# resize
b = ImageBufAlgo.resize(grid, roi=oiio.ROI(0, 256, 0, 256))
write(b, "resize.tif")
# resample
b = ImageBufAlgo.resample(grid, roi=oiio.ROI(0, 128, 0, 128))
write(b, "resample.tif")
