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)
# FIXME - colorconvert, ociolook need tests
# computePixelStats
compresults = oiio.CompareResults()
ImageBufAlgo.compare(ImageBuf("flip.tif"), ImageBuf("flop.tif"), 1.0e-6, 1.0e-6, compresults)
print "Comparison: of flip.tif and flop.tif"
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)
# FIXME - colorconvert, ociolook need tests
# computePixelStats
compresults = oiio.CompareResults()
ImageBufAlgo.compare(ImageBuf("flip.tif"), ImageBuf("flop.tif"), 1.0e-6,
1.0e-6, compresults)
def premultiply_image(cls, img_pixels: np.array) -> np.array:
""" Premultiply a numpy image with itself """
a = cls.np_to_imagebuf(img_pixels)
ImageBufAlgo.premult(a, a)
return a.get_pixels(a.spec().format, a.spec().roi_full)
(.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")
b = ImageBufAlgo.premult(b)
write(b, "premult.tif")
b = ImageBufAlgo.contrast_remap(tahoetiny, black=0.1, white=0.75)
write(b, "contrast-stretch.tif")
b = ImageBufAlgo.contrast_remap(tahoetiny, min=0.1, max=0.75)
write(b, "contrast-shrink.tif")
b = ImageBufAlgo.contrast_remap(tahoetiny, scontrast=5.0)
write(b, "contrast-sigmoid5.tif")
b = ImageBuf(OIIO_TESTSUITE_ROOT + "/oiiotool/src/tahoe-small.tif")
b = ImageBufAlgo.rangecompress(b)
write(b, "rangecompress.tif", oiio.UINT8)
b = ImageBufAlgo.rangeexpand(b)
write(b, "rangeexpand.tif", oiio.UINT8)
b = ImageBufAlgo.channel_sum (ImageBuf("../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")
b = ImageBufAlgo.premult (b)
write (b, "premult.tif")
b = ImageBufAlgo.contrast_remap (tahoetiny, black=0.1, white=0.75)
write (b, "contrast-stretch.tif")
b = ImageBufAlgo.contrast_remap (tahoetiny, min=0.1, max=0.75)
write (b, "contrast-shrink.tif")
b = ImageBufAlgo.contrast_remap (tahoetiny, scontrast=5.0)
write (b, "contrast-sigmoid5.tif")
b = ImageBuf ("../oiiotool/src/tahoe-small.tif")
b = ImageBufAlgo.rangecompress (b)
write (b, "rangecompress.tif", oiio.UINT8)
b = ImageBufAlgo.rangeexpand (b)
write (b, "rangeexpand.tif", oiio.UINT8)
