Image Stretch Equalize Histogram
Instructions
Histogram equalization is a way to enhance image contrast. Its main idea is to change the histogram distribution of an image into an approximately uniform distribution, which is a nonlinear stretching. The returned result type is RasterRDD. The description of image stretching can be referencedImage maximum stretching。
Parameter Specification
| Parameter Name | Default Value | Parameter Definition | Parameter Type |
|---|---|---|---|
| RDD to be analyzed | RDD to be analyzed | RasterRDD | |
| Minimum Target Pixel Value | 0 | The minimum target pixel value, where the original pixel value is stretched between the minimum and maximum target pixels. The default is 0 | Integer |
| Maximum Target Pixel Value | 255 | The maximum target pixel value, where the original pixel value is stretched between the minimum and maximum target pixels. The default is 255 | Integer |