2.15.9 cvPalette

1 Brief Information
2 Additional Information
3 Command Line Usage
4 X-Function Execution Options
5 Variables
6 Description
7 Examples
8 Algorithm
9 References

Brief Information

Apply specified palette colors to a gray or binary image to set a single-channel image

Additional Information

Minimum Origin Version Required: 2022

Command Line Usage

1. fname$ =system.path.program$ + "Palettes\Rainbow.PAL"; cvPalette;

X-Function Execution Options

Please refer to the page for additional option switches when accessing the x-function from script

Variables

Display
Name

Variable
Name

I/O
and
Type

Default
Value

Description

Input Image

img

Input/Ouput

ImageLayer

Specify the input image. It is also the destination of the output image.

Palette File

fname

Input

string

fname$

Select a palette. Refer to this page for how to add and manage color palettes in Origin.

Undo

undo

Input

int

Check this checkbox to support undo: 0 = false, 1 = true.

Description

This function changes a gray or binary image into pseudo color image. The gray levels of the original image are mapped to different colors according to the specified palette file. Undo is supported.

Examples

Example 1. Use Rainbow palette to color-mapping gray image

With a gray image active, run
```
cvpalette -d;
```
in the Command Window to open the dialog.
In the dialog, select palette Rainbow.PAL from <Origin program folder>\Palettes\. Click OK.

Result is shown below.

The original image	The output image

Algorithm

The computation uses function from OpenCV Main API. Please refer to the OpenCV Main API Help file, Version 2.4.11.0 and read imgproc. Image Processing topic.