JasPer 4.0.0 |

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JasPer Application Programs

# Introduction

In order to demonstrate how the JasPer library can be used, several sample application programs are provided in the JasPer software distribution. These programs include the following:

- `jasper`. The `jasper` program is an image transcoder (i.e., it converts image data from one format to another). For more details, see The jasper Program.
- `jiv`. The `jiv` program is a simple image viewer (based on OpenGL). For more details, see The jiv Program.
- `imgcmp` The `imgcmp` program is an image comparison utility. It measures the difference between two images using one of numerous distortion metrics (such as peak signal-to-noise ratio, mean squared error, root mean squared error, peak absolute error, and mean absolute error). For more details, see The imgcmp Program.
- `imginfo` The `imginfo` program provides basic information about an image, such as its geometry (i.e., number of components, width and height of components, and so on). For more details, see The imginfo Program.

Although the above-mentioned programs were initially developed for demonstration purposes, they have also proven quite useful in their own right, especially the `jasper` and `jiv` programs.