C Language Image Pixel Data Loading and Analysis [File Format Support] Supports multiple file formats including JPEG, BMP, etc.

# 1. Introduction

The Importance of Image Processing in Computer Vision and Image Analysis

This article focuses on how to read and analyze image pixel data using C language.

# ***

***mon formats include JPEG, BMP, etc. Each has unique features and storage structures. A brief overview is provided below.

### Common Image File Formats

1. **JPEG** (Joint Photographic Experts Group): Widely used in photography and web display, offering high compression ratios and good image quality.
2. **BMP** (Bitmap): A common image file format in Windows systems, employing lossless compression with simple pixel data arrangement.

### Characteristics and Differences of Image File Formats

- **JPEG**: Uses lossy compression, suitable for storing true-color images like photos, resulting in smaller files but potential minor distortions.
- **BMP**: Lossless compression ensures more accurate image information retention, larger files but higher image quality.

### Storage Structure and Data Parsing Methods of Different File Formats

- **JPEG**: Utilizes DCT (Discrete Cosine Transform)-based compression algorithms, with image data compressed in blocks during storage.
- **BMP**: Stores data as a bitmap, with pixels arranged in a matrix, row by row, where each pixel corresponds to a color value.

Subsequent chapters will focus on how to read and parse images of these formats using C language.

# 3. Reading and Loading Image Files

Reading and loading image files is a crucial step in image processing. With C language, various methods can be employed to read different image formats like JPEG and BMP. We will now introduce how to read these common image file formats using C language.

#### Methods and Tips for Reading JPEG Files with C Language

// Sample code: Reading JPEG files with C language
#include <stdio.h>
#include <jpeglib.h>

int main() {
     // Code to read JPEG files
     return 0;
}

##### Code Explanation:
- Include the `jpeglib.h` library for handling JPEG files.
- Write code logic for reading JPEG files.
- Use functions provided by the JPEG library for parsing and manipulation.

##### Results Explanation:
- With the `jpeglib.h` library, you can perform reading and parsing of JPEG files.
- Further processing and analysis of the pixel data of JPEG files can be conducted.

#### Methods and Tips for Reading BMP Files with C Language

// Sample code: Reading BMP files with C language
#include <stdio.h>
#include <stdint.h>

int main() {
     // Code to read BMP files
     return 0;
}

##### Code Explanation:
- Use data types from the `stdint.h` library for handling BMP files.
- Write code logic for reading BMP files.
- Parse and operate on data according to the BMP file format.

##### Results Explanation:
- With data types from `stdint