2.6.5.2 imgFlip

Contents

Menu Information

Flip

Brief Information

Flip the image horizontally or vertically

Command Line Usage

1. imgFlip d:=horizontal;

2. imgFlip d:=vertical img:=mat(1) oimg:=mat(2);

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
Direction d

Input

int

horizontal

Specifies whether to flip the image horizontally or vertically.

Option list

  • horizontal:Horizontal
Flips the image horizontally.
  • vertical:Vertical
Flips the image vertically.
Input Matrix img

Input

Image

<active>

Specifies the image to be manipulated. The default input is the active image.

Output Image oimg

Output

Image

<input>

Specifies the output image. By default, the output image is the same as the input image.

See the syntax here.

Description

This function flips a specified image either horizontally or vertically.

Examples

In this example, we use the imgFlip function to flip the input image horizontally:

  1. Create a new matrix and import car.bmp under \Samples\Image Processing and Analysis folder into it.
  2. When the input image is active, select Image: Geometric Transform: Flip: Horizontal Flip.

A new image is created. As you can see, the image have been flipped horizontally.

ImgFlip help English files image002.jpg
ImgFlip help English files image004.jpg
The original image
The output image


Algorithm

The computation uses L_FlipBitmap() and L_ReverseBitmap() function from LEADTOOLS Main API. Please refer to the LEADTOOLS Main API Help file, Version 14 and read the L_FlipBitmap and L_ReverseBitmap topics.

References

LEADTOOLS Main API Help file, Version 14

Related X-Functions

imgRotate