Harmonyos image processing application development live broadcast notes

Obtain image features （ Image enhancement ） Like filters

PixelMap

integer array
openCV Need to cross compile
BoofCV A series of Java package

Main interface

EX1.

1. Get resources 2. Get binary stream bit Array 3.


（ Pay attention to the pit ） here readPixels File resources can only be read through this interface and method

EX2.

1. establish image 2.load pm object 3. Turn into planner( Image class ) 4. The grayscale image is loaded into an image and converted into pixelmap
（ Digital image processing involves image processing ）

EX3.

Use library to realize filter

tensorflow pytouch
1. Learn digital image processing （ Bottom operation of image processing ）2. Classic traditional image processing 3. Understand what deep learning can do , How is it different from before （ Teachers' experience of deep learning ）
Histogram equalization equelize()

EX4.

edge detection


Extract information Does the vehicle yaw
Use canva operator Image processing libraries have such operators
canva The principle of operators , Among them, ideas can be transplanted for learning （ Visual algorithm engineer ）

key technology

Preprocessing

Save the pixel set to the linked list