How do I partially stretch, deform, or enlarge an image?

Source: Internet
Author: User

=============== Problem description ====================


For example, what is the implementation principle of meitu xiuxiu's face slimming function?
Please express your own opinions

============= Solution 1 ======================


It should be related to graphics processing algorithms. It is necessary to study computer graphics, personal understanding.

============= Solution 2 ======================


Agree with the upstairs comments

============= Solution 3 ======================


I only know that matrix can be used for transformation...
Java

How do I partially stretch, deform, or enlarge an image?

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