Image rendering method and apparatus

A non-transitory computer-readable storage medium that includes a set of instructions which, in response to execution by a processor of a computing system, causes the processor to perform a method to render an image, the method comprising:

• obtaining two-dimensional image information of the image including a target and a scene;
• obtaining depth information associated with a first set of pixels and a second set of pixels of the image, wherein the first set of pixels correspond to the target and the second set of pixels correspond to the scene;
• determining whether depth information associated with a pixel of the first set of pixels or the second set of pixels is within a predetermined range;
• in response to the depth information associated with the pixel being in the predetermined range, associating a first depth index with the pixel, and in response to the depth information associated with the pixel not being in the predetermined range, associating a second depth index with the pixel;
• calculating a weighted average picture level of the image based on grayscale values of pixels of the image, the first depth index and/or the second depth index;
• rendering the image based on the weighted average picture level;
• and
• determining whether a number of the first set of pixels and the second set of pixels having changed grayscale values exceeds a predetermined number.

An apparatus configured to render an image, comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium storing instructions, which in response to execution by the processor, cause the processor to:
• obtain two-dimensional image information of the image including a target and a scene;
• obtain depth information associated with a first set of pixels and a second set of pixels of the image, wherein the first set of pixels correspond to the target and the second set of pixels correspond to the scene;
• determine whether depth information associated with a pixel of the first set of pixels or the second set of pixels is within a predetermined range;
• in response to the depth information associated with the pixel being in the predetermined range, associate a first depth index with the pixel, and in response to the depth information associated with the pixel not being in the predetermined range, associate a second depth index with the pixel;
• calculate a weighted average picture level based on grayscale values of pixels of the image, the first depth index and/or the second depth index;
• render the image based on the weighted average picture level;
• and
• determine whether a number of the first set of pixels and the second set of pixels having changed grayscale values exceeds a predetermined number.