Hi David, > It seems to be the opposite regarding his proposition gdImageCompare(im1, > im2) & GD_CMP_IMAGE. Then yes you are right, we are losing the specifics. If > you want to figure out how the image 1 and image 2 differ, you need to use > the rest of the api e.g. imagecolortransparent and all that jazz ... A bit > too complex I feel.
Thanks for the explanation. What I think is important to note here is that there are two types of users who will use this feature: 1. Users who simply want to know if there is a match (i.e. a bool return value is sufficient) 2. Users who want to know the details of the differences The object return type that Kamil mentioned was something I was considering as well, but I was concerned that it would be a bit verbose for type 1 users and would necessarily incur the overhead of object creation. (This is probably an unnecessary concern, as image analysis takes much longer.) Regards, Saki
