If you just want a ffmpeg command, try ffmpeg -i input.mov -i overlay.mov \ -filter_complex “[1:v]setpts=PTS-10/TB[a]; \ [0:v][a]overlay=enable=gte(t\,5):shortest=1[out]” \ -map [out] -map 0:a \ -c:v libx264 -crf 18 -pix_fmt yuv420p \ -c:a copy \ output.mov This starts the overlay at 5 seconds with the overlaid video start point being 00:15. setpts=PTS-10/TB is setpts=PTS+(overlay_delay-video_trim_in)/TB overlay=enable=gte(t\,5) is … Read more
You should do itVid = videoObjects.erase(itVid); Quote from cplusplus.com: [vector::erase] invalidates all iterator and references to elements after position or first. Return value: A random access iterator pointing to the new location of the element that followed the last element erased by the function call, which is the vector end if the operation erased the … Read more
As I mentioned in my comment, it’s a matter of converting from RGB colourspace to Lab* colourspace and using the euclidean distance to the average colour of the image from the database. Here’s a basic demo: #include “testApp.h” //ported from http://cookbooks.adobe.com/post_Useful_color_equations__RGB_to_LAB_converter-14227.html struct Color{ float R,G,B,X,Y,Z,L,a,b; }; #define REF_X 95.047; // Observer= 2°, Illuminant= D65 #define … Read more