AP’s editorial standards state that images must be accurate. AP does not use altered or digitally manipulated images.
AP’s news values and principles explain that minor photo editing, including cropping and toning and color adjustments, are acceptable when necessary for clear and accurate reproduction and should maintain the authentic nature of the photograph.
Changes in density, contrast, color and saturation levels that substantially alter the original scene are not acceptable. Backgrounds should not be digitally blurred or eliminated by burning down or by aggressive toning. The removal of “red eye” from photographs is not permissible.
Source