Comparison of student results to correct results
Extract
Grey
Threshold
Interpolate
Extrapolate
Brighten
Darken
Increase Contrast
Decrease Contrast
Inc. Saturation
Decr. Saturation
Invert
Convolution
Edge detect
Box Blur
Gaussian Blur
Ordered Dither
Floyd Steinberg
Resample Nearest
Resample Bilinear
Resample Gaussian
Rotate
Scale Down
Scale Up
Composite
Crop