System and method for efficiently enhancing videos and images

A computing device implemented method for processing videos or images in a computing device, the method comprising:

• providing to the computing device, a frame, the frame including a known number of pixels;
• determining with the computing device, a global mean, the global mean being a first luminance value associated with the known number of pixels;
• selecting with the computing device, three horizontal lines of pixels;
• buffering with the computing device, the three horizontal lines of pixels, the three horizontal lines including a top line, a middle line, and a bottom line;
• selecting with the computing device, a target pixel from the middle line, the target pixel being characterized by at least a second luminance value;
• selecting with the computing device, eight surrounding pixels, the eight surrounding pixels being adjacent to the target pixel;
• determining with the computing device, a first direction based on a transition between the target pixel and a transition pixel, the transition pixel being one of the eight surrounding pixels;
• determining with the computing device, a second direction, the second direction being perpendicular to the first direction;
• determining with the computing device, a peaking compensation value, the peaking compensation value being associated with the first direction;
• determining with the computing device, a noise compensation value, the noise compensation value being associated with the second direction;
• determining with the computing device, a contrast compensation value based on the global mean and a local mean;
• determining with the computing device, a brightness compensation value based on the global mean and the first luminance level;
• modifying with the computing device, the target pixel;
• and
• displaying with the computing device, the frame.

A computing device implemented method for processing videos or images in a computing device, the method comprising:

• receiving with the computing device, a frame, the frame being characterized by a first number of horizontal lines and a second number of pixels;
• determining with the computing device, a global mean for the second number of pixels;
• storing with the computing device, a first line, a second line, and a third line of pixels at a buffer;
• performing with the computing device, at least a first brightness adjustment for the second line of pixels based on the global mean;
• performing with the computing device, at least a first contrast adjustment for the second line of pixels based on information from the first line and the third line of pixels;
• removing with the computing device, the first line of pixels from the buffer;
• storing with the computing device, a fourth line of pixels at the buffer;
• performing with the computing device, at least a second contrast adjustment for the third line of pixels based on information from the second line and the fourth line of pixels;
• performing with the computing device, at least a second brightness adjustment for the third line of pixels based on the global mean;
• and
• displaying with the computing device, the frame.

A system for processing videos or images, the system comprising:

• a storage, the storage being configured to store at least a frame, the frame being characterized by a first number of horizontal lines and a second number of pixels;
• a buffer memory;
• a processor;
• a user interface;
• and a display;
• wherein:
• the processor is configured to determine a global mean for the second number of pixels;
• the buffer memory is configured to store a first line, a second line, and a third line of pixels;
• the processor is further configured to perform at least a first brightness adjustment for the second line of pixels based on the global mean;
• the processor is further configured to perform at least a first contrast adjustment for the second line of pixels based on information from the first line and the third line of pixels;
• the buffer memory is configured to remove the first line of pixels and to store a fourth line of pixels after the first contrast adjustment and the first brightness adjustment are performed;
• the processor is further configured to perform at least a second contrast adjustment for the third line of pixels based on information from the second line and the fourth line of pixels;
• the processor is further configured to perform at least a second brightness adjustment for the third line of pixels based on the global mean.