Two-dimensional image depth of field generation method and device

A two-dimensional image depth of field generation method, comprising:

• obtaining a target image, classifying the target image to obtain corresponding multiple image classes, and calculating the maximum sharpness value corresponding to each image class;
• respectively acquiring an object of each image class to estimate sharpness value of the object of each image class, and classifying the object of each image class based on the maximum sharpness values corresponding to each image class;
• estimating depth value of the object of each image class using a depth value estimation algorithm, based on the sharpness value of the classified object of each image class;
• and
• estimating depth of field value of the object of each image class using a depth of field value estimation algorithm, based on the depth value of the object of each image class.

A two-dimensional image depth of field generation device, comprising a processor and a non-transitory processor-readable medium storing program code executable by the processor, the program code comprising:

• a classification module, configured to obtain a target image, classify the target image to obtain corresponding multiple image classes, and calculating the maximum sharpness value corresponding to each image class;
• a sharpness estimation module, configured to respectively acquire an object of each image class to estimate sharpness value of the object of each image class, and classify the object of each image class based on the maximum sharpness values corresponding to each image class;
• a depth value estimation module, configured to estimate depth value of the object of each image class using a depth value estimation algorithm, based on the sharpness value of the classified object of each image class;
• and
• a depth of field value estimation module, configured to estimate depth of field value of the object of each image class using a depth of field value estimation algorithm, based on the depth value of the object of each image class.