blind-transform		transformation by matrix multiplication, -t for tiling, -s for improve quality
				on downscaling (pixels' neighbours must not change)
blind-chroma-key	replace a chroma with transparency
blind-primary-key	replace a primary with transparency, -g for greyscaled images
blind-primaries		given three selectable primaries split the video into three side-by-side which
				only one primary active
blind-apply-map		remap pixels (distortion) using the X and Y values, -t for tiling, -s for
				improve quality on downscaling (pixels' neighbours must not change)
blind-apply-kernel	apply a convolution matrix
blind-find-frame	a graphical tool for locating frames, should highlight key frames

UNTESTED:
	blind-colour-srgb
	blind-crop
	blind-cut
	blind-dissolve
	blind-extend
	blind-from-text
	blind-gauss-blur
	blind-invert-luma
	blind-rewrite-head
	blind-set-alpha
	blind-set-luma
	blind-set-saturation
	blind-split
	blind-to-text