Image processing method and apparatus

An image processing apparatus, comprising:

• a first conversion unit configured to convert colors of pixels of a foreground image from colors in a first color space of a first color display standard into optical signals under a second color display standard to obtain a first optical signal set;
• a conversion coefficient obtaining unit configured to obtain a conversion coefficient according to a peak brightness of the second color display standard and a peak brightness of a target display device, wherein the target display device is a device for displaying a fused image of the foreground image and a background image;
• a second conversion unit configured to convert the optical signals in the first optical signal set according to the conversion coefficient to obtain a second optical signal set;
• a third conversion unit configured to convert colors of pixels of the background image from colors in a second color space of the second color display standard into optical signals under the second color display standard to obtain a third optical signal set;
• a fusion unit configured to fuse optical signals in the second optical signal set and the third optical signal set based on a light transmittance of the foreground image to obtain a fourth optical signal set, wherein the fusion unit is specifically configured to perform weighted fusion on optical signals having same pixel coordinates in the second optical signal set and the third optical signal set based on the light transmittance of the foreground image to obtain a fused optical signal set;
• and generate the fourth optical signal set according to the fused optical signal set, optical signals having different pixel coordinates from any optical signal in the third optical signal set among the optical signals in the second optical signal set, and optical signals having different pixel coordinates from any optical signal in the second optical signal set among the optical signals in the third optical signal set;
• and
• a fused image obtaining unit configured to convert optical signals in the fourth optical signal set into the colors in the second color space to obtain the fused image of the foreground image and the background image.

An electronic device, comprising a memory and a processor, wherein the memory is configured to store a computer program;

• and the processor is configured to, when executing the computer program, enable the electronic device to implement an image processing method comprising:
• converting colors of pixels of a foreground image from colors in a first color space of a first color display standard into optical signals under a second color display standard to obtain a first optical signal set;
• obtaining a conversion coefficient according to a peak brightness of the second color display standard and a peak brightness of a target display device, wherein the target display device is a device for displaying a fused image of the foreground image and a background image;
• converting the optical signals in the first optical signal set according to the conversion coefficient to obtain a second optical signal set;
• converting colors of pixels of the background image from colors in a second color space of the second color display standard into optical signals under the second color display standard to obtain a third optical signal set;
• fusing optical signals in the second optical signal set and the third optical signal set based on a light transmittance of the foreground image to obtain a fourth optical signal set, comprising:
• performing weighted fusion on optical signals having same pixel coordinates in the second optical signal set and the third optical signal set based on the light transmittance of the foreground image to obtain a fused optical signal set;
• and
• generating the fourth optical signal set according to the fused optical signal set, optical signals having different pixel coordinates from any optical signal in the third optical signal set among the optical signals in the second optical signal set, and optical signals having different pixel coordinates from any optical signal in the second optical signal set among the optical signals in the third optical signal set;
• and
• converting optical signals in the fourth optical signal set into colors in the second color space to obtain the fused image of the foreground image and the background image.