key frames extraction: any references? about katna HOT 3 CLOSED

You may want to read SAD (Sum of absolute difference)

from katna.

You may want to read SAD (Sum of absolute difference)

Here is your wiki script :
" Frame extraction and selection criteria for key-frame extraction

Frame that are sufficiently different from previous ones using absolute differences in LUV color-space
Brightness score filtering of extracted frames
Entropy/contrast score filtering of extracted frames
K-Means Clustering of frames using image histogram
Selection of best frame from clusters based on and variance of Laplacian (image blur detection)"

I think "Frame that are sufficiently different from previous ones" is the most important step to follow. But I don't understand why it can generate good key frames. And why the following cluster process and blur detection should be added? Is there any paper to refer?

from katna.

Closing the question as it is not an issue

from katna.