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How to program with OUCC's Blockly Image Task tool

Example 1 - Make an image black and white:
In a black and white images the three colour components have to have the same value. Here is one algorithm:

1. Get the three values for each pixel
2. Add them together and divide by three
3. Replace the values of all three colour components with this average value.

Here is a program that would achieve this. Press run to see it in action:

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Images Tutorial Start
Example 1 - Make an image black and white
Example 2 - Make another black and white image
Example 3 - Make the flowers yellow
Taking things further

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