This demo applies image transforms to a test image. Select a transform,
enter any options, and click 'react to inputs'.
Supported options:
- {"blurSize" : 1 - 25} (blur, gaussianBlur, medianBlur)
- {"cannyThreshold" : 10 - 150} (findContours, findEdges)
- {"erosionSize" : 0-21} (dilate, erode)