# 2.6.5.2 imgFlip

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); 

## 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.

 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