how to compare two frames of any media file in vc++

rajniyadav1a

Chris Losinger

what do you mean by "compare" ?

image processing toolkits | batch image processing

Cool_Dev

it depends on how you represent the decoded frames. It can be by BITMAPINFOHEADER like structures..

normanS

Assuming you mean video frames, you could do something like this:

convert both frames to a common format (same number of rows and columns, same pixel format for example RGB15)
pixel by pixel, compare the red, green, blue components and check that they are "close enough"
If a "high enough" percentage of pixels match, the media frames match

This method will fail to return a match for all sorts of reasons, for example, because one frame has been cropped or because one frame has been processed to adjust the contrast, etc. Really, what you need to do is figure out what tineye www.tineye.com[^] are doing.