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The Image Pixel Reader filter node enables you to read out pixel information of a specified image file. It can return red, green, blue and alpha value of a pixel within the image, as well as an average value for the three colors.
This node can be found under Nodes > Filter > Image Pixel Reader
Click the button on the right to browse for an image file. Accepted file formats are BMP, PNG, JPG and TIFF.
Choose an input node from the drop-down or enter a numeric value for the X position of the pixel to be analyzed.
Choose an input node from the drop-down or enter a numeric value for the Y position of the pixel to be analyzed. Please bear in mind that the pixel count starts with 1/1 in the top left corner.
With Widget Designer version 6, all nodes support so called node commands. Node commands access functions (i.e methods) from a node and / or set a parameter (i.e. property).
Enter "node", followed by the according ID and a dot and a list will pop up showing all available commands for the node. For instance, Node1.TintColor.SetRGB(125,0,255), colors the node in purple.
In addition, the node properties with a parameter ID (the small superscript number) can be edited via the command Node1.SetParam(ID,new Value) or WDNodeSetParam(NodeID,ParamID,Value).
The Node generates the following output:
- Result: "1" if the input point is within the bounding box and "0" if it is outside the bounding box