Image edge processing method, electronic device, and computer readable storage medium

An image edge processing method, comprising steps of:

• extracting a brightness component from an input image;
• calculating an edge probability value mp of each pixel in the image according to the brightness component;
• calculating an enhancement coefficient λ for each pixel based on the edge probability value mp;
• performing a noise detection according to the brightness component, and determining if each pixel in the image is a noise point;
• when the pixel is not a noise point, performing a logarithmic processing to the pixel in order to obtain a data w;
• enhancing an edge of the image according to the λ, the w and the brightness component in order to obtain an enhanced brightness component data;
• and
• after performing a brightness component synthesis according to the enhanced brightness component data, outputting an enhanced image;
• wherein the method further comprises a step of:
• when a pixel is a noise point, performing a Gaussian filtering to the pixel in order to perform a noise reduction;
• wherein after the step of extracting a brightness component from an input image, the method comprise a step of:
• increasing the number of bits of the brightness component in order to calculate an edge probability value mp of each pixel in the image according to the brightness component after increasing the number of bits;
• and
• after the step of obtaining an enhanced brightness component data, the method further comprises a step of:
• converting the enhanced brightness component data to a low bit through dithering in order to perform the brightness component synthesis according to the brightness component data after being converted.