KelSolaar

def getCropRectangle(node):
    width, height = node.width(), node.height()
    xMin = width
    xMax = 0
    yMin = height
    yMax = 0

    for x in range(width):
        for y in range(height):
            if node.sample("alpha", x, y) != 0:

KelSolaar

knob = nuke.toNode("Camera_Color_Profiling.cameraColorProfiling_ColorMatrix").knob("outputColorSpace_pulldownChoice")
knob.setExpression("parent.outputColorSpace_pulldownChoice", 0) 

KelSolaar

<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.5-c002 1.148022, 2012/07/15-18:06:45        ">
 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about=""
    xmlns:tiff="http://ns.adobe.com/tiff/1.0/"
    xmlns:exif="http://ns.adobe.com/exif/1.0/"
    xmlns:aux="http://ns.adobe.com/exif/1.0/aux/"
    xmlns:xmp="http://ns.adobe.com/xap/1.0/"
    xmlns:photoshop="http://ns.adobe.com/photoshop/1.0/"
    xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
    xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#"

KelSolaar

<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.5-c002 1.148022, 2012/07/15-18:06:45        ">
 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about=""
    xmlns:aux="http://ns.adobe.com/exif/1.0/aux/"
    xmlns:xmp="http://ns.adobe.com/xap/1.0/"
    xmlns:photoshop="http://ns.adobe.com/photoshop/1.0/"
    xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
    xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#"
    xmlns:stRef="http://ns.adobe.com/xap/1.0/sType/ResourceRef#"

KelSolaar

<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.5-c002 1.148022, 2012/07/15-18:06:45        ">
 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about=""
    xmlns:aux="http://ns.adobe.com/exif/1.0/aux/"
    xmlns:xmp="http://ns.adobe.com/xap/1.0/"
    xmlns:photoshop="http://ns.adobe.com/photoshop/1.0/"
    xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
    xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#"
    xmlns:stRef="http://ns.adobe.com/xap/1.0/sType/ResourceRef#"

KelSolaar

from PIL import Image

width, height = 256, 32
image = Image.new("RGB", (width, height))
pixels = image.load()
for i in range(image.size[0]):
    for j in range(image.size[1]):
        pixels[i,j] = (i, i, i)
image.save("Linear_Ramp.png", "PNG")

KelSolaar

artAttrInitPaintableAttr;
artBlendShapeTargetIndex;
artAttrBlendShapeValues artAttrBlendShapeContext;
artAttrUpdatePaintValueSlider artAttrCtx;
artAttrBlendShapeValues artAttrBlendShapeContext;
artAttrPaintOperation artAttrCtx Scale;
artAttrBlendShapeValues artAttrBlendShapeContext;
artAttrCtx -e -value -1.0 `currentCtx`;
artAttrCtx -e -clear `currentCtx`;
artAttrPaintOperation artAttrCtx Add;

KelSolaar

import math

diagonal = lambda w, h: math.sqrt(w ** 2 + h ** 2)

wr = 36. # Reference 24mm * 36mm sensor.
hr = 24.
dr = diagonal(wr, hr)

w = 7.6  # Current sensor: http://en.wikipedia.org/wiki/Image_sensor_format
h = 5.7

KelSolaar

BACKGROUND_CODES = (("bBlack", "40m"),
					("bRed", "41m"),
					("bGreen", "42m"),
					("bYellow", "43m"),
					("bBlue", "44m"),
					("bPurple", "45m"),
					("bCyan", "46m"),
					("bWhite", "47m"),
					("bHighBlack", "100m"),
					("bHighRed", "101m"),

KelSolaar

# PyCharm will complain the the parameters are missing in docstrings with
# Numpy style docstrings.
def XYZ_to_CIECAM02(XYZ,
                    XYZw,
                    LA,
                    Yb,
                    surround=CIECAM02_VIEWING_CONDITIONS.get(
                        'Average'),
                    discount_illuminant=False):
    """