Then, we should read every image inside the cat folder and place it onto the background image. An example placement is given below.

image $=$ cv$2.$ imread $($ main dir $+\text{'}/$cat$5.$png$\text{'})$

foreground $=$ np$.$logical$\_$or $($image $[$:$,$: image $[$:$,$:$,0]>150$ #The pixels having cat image.

nonzero$\_$x$,$ nonzero$\_$y $=$ np$.$nonzero $($foreground$)$

#The 'foreground' variable here is only a True$-$False map with the same size.

#Using np$.$nonzero function we can find the locations of True values. nonzero$\_$cat$\_$values $=$ image$[$nonzero$\_$x$,$ nonzero$\_$y$,$:$]$ # A matrix of shape $.$

$,3)$ containing the pixel values be longing to the cat part.

new$\_$frame $=$ background.copy $()$

new frame $[$nonzero $x,$ nonzero $y_{,}$: