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")
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 = 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)
# color_map
b = ImageBuf()
ImageBufAlgo.color_map(b, ImageBuf("../oiiotool/src/tahoe-tiny.tif"), -1,
"inferno")
write(b, "colormap-inferno.tif", oiio.UINT8)
b = ImageBuf()
ImageBufAlgo.color_map(b, ImageBuf("../oiiotool/src/tahoe-tiny.tif"), -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))
ImageBufAlgo.unpremult(b, b)
write(b, "unpremult.tif")
ImageBufAlgo.premult(b, b)
write(b, "premult.tif")
b = ImageBuf("../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("../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)
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)
# color_map
b = ImageBuf()
ImageBufAlgo.color_map (b, ImageBuf("../oiiotool/src/tahoe-tiny.tif"),
-1, "spectrum")
write (b, "colormap-spectrum.tif", oiio.UINT8)
b = ImageBuf()
ImageBufAlgo.color_map (b, ImageBuf("../oiiotool/src/tahoe-tiny.tif"),
-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))
ImageBufAlgo.unpremult (b, b)
write (b, "unpremult.tif")
ImageBufAlgo.premult (b, b)
write (b, "premult.tif")
b = ImageBuf ("../oiiotool/src/tahoe-small.tif")
def compare(self, diff_image_location=None, blur=10, raise_exception=True):
"""Compare the two given images
Args:
diff_image_location (str): file path for difference image.
Written only if there are failures
blur (float): image blur to apply before comparing
"""
if not diff_image_location:
diff_image_location = os.path.dirname(self._image_a_location)
self.blur_images(blur)
ImageBufAlgo.compare(
self.image_a_buffer,
self.image_b_buffer,
self.fail_threshold,
self.warn_threshold,
self._compare_results,
)
diff_buffer = self.create_diff_buffer()
if self.debug:
self.image_a_buffer.write(
'{}/{}_debug{}'.format(
diff_image_location,
os.path.basename(self._image_a_location),
self._file_ext,
)
)
self.image_b_buffer.write(
'{}/{}_debug{}'.format(
diff_image_location,
os.path.basename(self._image_b_location),
self._file_ext,
)
)
if self._compare_results.nfail > 0:
ImageBufAlgo.color_map(diff_buffer, diff_buffer, -1, 'inferno')
remap_buffer = ImageBuf()
multiplier = 5
ImageBufAlgo.mul(
remap_buffer,
diff_buffer,
(multiplier, multiplier, multiplier, 1.0),
)
ImageBufAlgo.add(remap_buffer, self.image_a_buffer, remap_buffer)
msg = report_msg.format(
failures=self._compare_results.nfail,
warn=self._compare_results.nwarn,
meanerror=self._compare_results.meanerror,
rmserror=self._compare_results.rms_error,
psnr=self._compare_results.PSNR
)
remap_buffer.write(
'{}/{}-{}_diff{}'.format(
diff_image_location,
os.path.basename(self._image_a_location),
os.path.basename(self._image_b_location),
self._file_ext,
)
)
self.image_a_buffer.write(
'{}/{}_debug{}'.format(
diff_image_location,
'1_a',
self._file_ext,
)
)
self.image_b_buffer.write(
'{}/{}_debug{}'.format(
diff_image_location,
'1_b',
self._file_ext,
)
)
if raise_exception:
raise ImageDifferenceError(msg)
else:
print(msg)
