seqDiff

seqDiff( integer Sequence, integer Output )

Use this function to convert a sequence into a new sequence, each frame of which represents a difference between the frames in an input sequence. Frame 0 in the output sequence reflects the difference between frames 1 and 0 in the input sequence, frame 1 the difference between frames 2 and 1, and so on. As a result, the output sequence contains one less frame than the input one.

Parameters

Sequence

An integer between 1 and 116 specifying the number of the sequence. Values in the range of 100-116 correspond to hidden sequences.

Output

An integer between 1 and 116 specifying the number of the image or sequence to be extracted. Values in the range of 100-116 correspond to hidden images.

Error flags

ERR_OK

The flag set if successful.

ERR_FAILED

The flag set if failed.

Example

This set of statements grabs a sequence from the video device and creates a differential sequence.

grabSeq(1,8,100)

seqDiff (1,2)