Image filtering for subject and crowd identification

A system comprising:

• a processor;
• and
• a non-transitory computer-readable medium communicatively coupled to the processor,
• wherein the processor is configured to execute program code stored in the non-transitory computer-readable medium and thereby perform operations comprising:
• retrieving a first input image from memory;
• determining two or more facial regions in the first input image using a facial detection algorithm;
• identifying features for each facial region of the two or more facial regions in the first input image;
• determining, from the two or more facial regions in the first input image, a subject face and a crowd face in the first input image based on at least a number of the features for the subject face being more than a number of the features for the crowd face;
• causing a display device to display at least the subject face identified within the first input image;
• retrieving a second input image from the memory;
• determining two or more facial regions in the second input image using a facial detection algorithm;
• identifying features for each facial region of the two or more facial regions in the second input image;
• determining, from the two or more facial regions in the second input image, a second subject face and a second crowd face in the second input image based on at least the number of the features for the second subject face being more than the number of the features for the second crowd face;
• and
• causing a display device to display at least the second subject face identified within the second input image.

A non-transitory computer-readable medium having program code that is stored thereon, the program code executable by one or more processing devices for performing operations comprising:

• accessing a first input image from a memory device;
• filtering the first input image to identify subject faces, wherein filtering the first input image comprises:
• determining two or more facial regions in the first input image using a facial detection algorithm;
• identifying features for each facial region of the two or more facial regions in the first input image;
• and
• determining, from the two or more facial regions in the first input image, a subject face and a crowd face in the first input image based on at least a number of the features for the subject face being more than a number of the features for the crowd face;
• causing a display device to display at least the subject face identified within the first input image;
• retrieving a second input image from the memory device;
• determining two or more facial regions in the second input image using the facial detection algorithm;
• identifying features for each facial region of the two or more facial regions in the second input image;
• determining a second subject face and a second crowd face in the second input image based on at least a number of the features for the second subject face being more than the number of the features for the second crowd face;
• and
• causing the display device to display at least the second subject face identified within the second input image.