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ImageRotate

Rotates an image by a given angle.

$ wo 'ImageDimensions[ImageRotate[Image[{{0.1, 0.2, 0.3}, {0.4, 0.5, 0.6}}], Pi/2]]'
{2, 3}

The angle may instead name the edge the current top should end up at:

$ wo 'ImageDimensions[ImageRotate[Image[{{0.1, 0.2, 0.3}, {0.4, 0.5, 0.6}}], Left]]'
{2, 3}

$ wo 'ImageDimensions[ImageRotate[Image[{{0.1, 0.2, 0.3}, {0.4, 0.5, 0.6}}], Top]]'
{3, 2}

Anything else is reported and the call left alone:

$ wo 'ImageRotate[Image[{{0.}}], x]'

ImageRotate::imgang: Angle x should be a real number; one of Top, Bottom, Left or Right; or a rule from one to another.
ImageRotate[-Image-, x]