Generate video from self shots

Question

I'm not sure if this is the right place to post such a question. But maybe, someone can help me.

I took a lot of photos from a person the last few month. The pictures are all front-faced pictures, with different lightnings, one time the face is closer to the camera, then one time farer away etc. Now I want to create a movie with all the pictures, to show some progress. But before I begin to manually correct the photos (fix lightning, make all faces the same size, rotate the faces a little bit...), and put them in Premiere, I was wondering if there is some kind of software to achieve this. It could be a program, script, library... I read a little bit about open cv, but maybe there is already something out there.

Answer 1

Might be possible with OpenCV ,

As your requirement the first thing is

Lighting adjustment

OpenCV has an entire documentation about Changing the contrast and brightness of an image. In another way you adjust the contrast with histogram equalization. For this you need to convert your RGB image to HSV and apply equalizeHist() to the V(value) channel.

OpenCV Resize

For resizing you can use OpenCV resize function

Here is a piece of code how to do this

Mat src = imread(image.jpg);
Mat dst;
resize(src, dst, Size(640, 480), 0, 0, INTER_CUBIC); // resize to 640X480 resolution

Rotation

For rotation you can use Affine Transformations

Video Writing

OpenCV has VideoWriter class to write video using various frame rate,codec, resolution etc..

Here is the source code for writing video using series of image, assuming your images with names 0.jpg,1.jpg,2.jpg.....

int main()
{

  VideoWriter writer;
  writer.open("out.avi",CV_FOURCC('M','J','P','G'),15,Size(640,480),true);//Initialize video writer. The resolution should be same as source image
  if(!writer.isOpened()){
    cout<<"Cannot write video..!!!"<<endl;
    return -1;
    }

  char name[10];
  int i=0;
  while(1){
  sprintf(name,"%d.jpg",i++);
  Mat src=imread(name,CV_LOAD_IMAGE_COLOR);
   if (src.empty()){ 
     cout<<"No source found...."<<endl;
     break;
    }
  writer.write(src);
  imshow("src", src);
  waitKey(0);
  }
    return 0;
}