ImageReflect[image] reverses image by top-bottom mirror reflection. ImageReflect[image, side] reverses image by reflecting it so that the specified side goes to the opposite side. ImageReflect[image, side1->side2] reflects image so that side1 is interchanged with side2. ImageReflect[video, ...] reflects frames of video.
Top-bottom mirror reflection: In[1]:=ImageReflect[] Out[1]= Left-right mirror reflection: In[1]:=ImageReflect[, Left] Out[1]=
ImageRotate | ImageTransformation | ImageCrop | Reverse
introduced in Version 7 (November 2008) last modified in Version 13 (December 2021)