Support more affine expression forms in im.point(), deprecate Image.coerce_e #6254
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Thanks. I've created benrg#1 with some suggestions. |
In modes I and F, Image.point only supported affine expressions of the forms (lambda x:) x * a, x + a, and x * a + b. Expressions like 1 - x had to be written x * -1 + 1. This rewrite, though still limited to affine transformations, supports far more expression forms, including 1 - x, (2 * x + 1) / 3, etc.
* Removed unused import * Restored existing checks * Restored coerce_e, _E and data property * Deprecated coerce_e Co-authored-by: Andrew Murray <radarhere@users.noreply.github.com>
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In modes I and F, Image.point only supported affine expressions of the forms (lambda x:) x * a, x + a, and x * a + b. Expressions like 1 - x had to be written x * -1 + 1.
This rewrite, though still limited to affine transformations, supports far more expression forms, including 1 - x, (2 * x + 1) / 3, etc.