anaglik

  CIContext *context = [CIContext contextWithOptions:nil];
  UIImage *entryImage = [UIImage imageNamed:@"someImage.png"];
  CIImage *image = [CIImage imageWithCGImage:[entryImage CGImage]];
  CIFilter *filter = [CIFilter filterWithName:@"CIMaskToAlpha"];
  [filter setValue:image forKey:kCIInputImageKey];
  CIImage *result = [filter valueForKey:kCIOutputImageKey];
  CGImageRef cgImage = [context createCGImage:result fromRect:[result extent]];

  UIImage *newImage = [UIImage imageWithCGImage:cgImage scale:[entryImage scale] orientation:UIImageOrientationUp];

anaglik

DIRECTORY = "/videos/"

Dir.foreach(DIRECTORY) { |file| 
	next if !file.end_with?(".mov")
	new_file = file.sub(".mov",".mp4")
	puts "converting #{file} into #{new_file} ... \n"
	%x{HandBrakeCLI -Z HigherProfile --strict-anamorphic --crop "0:0:0:0" -i "#{DIRECTORY}#{file}" -o "#{DIRECTORY}#{new_file}" }
}