图片转Rgb565C

fys-common/fys-common-core/src/main/java/com/fuyuanshen/common/core/utils/ImageToCArrayConverterUtils.java

@@ -0,0 +1,90 @@
+package com.fuyuanshen.common.core.utils;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+public class ImageToCArrayConverterUtils {
+
+    public static void main(String[] args) {
+        try {
+            convertImageToCArray("E:\\workspace\\6170_强光_160_80_2.jpg", "E:\\workspace\\output.c", 160, 80);
+            System.out.println("转换成功！");
+        } catch (IOException e) {
+            System.err.println("转换失败: " + e.getMessage());
+        }
+    }
+
+    public static void convertImageToCArray(String inputPath, String outputPath,
+                                            int width, int height) throws IOException {
+        // 读取原始图片
+        BufferedImage originalImage = ImageIO.read(new File(inputPath));
+
+        // 调整图片尺寸
+        BufferedImage resizedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        resizedImage.getGraphics().drawImage(
+                originalImage, 0, 0, width, height, null);
+
+        // 转换像素数据为RGB565格式（高位在前）
+        ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                int rgb = resizedImage.getRGB(x, y);
+
+                // 提取RGB分量
+                int r = (rgb >> 16) & 0xFF;
+                int g = (rgb >> 8) & 0xFF;
+                int b = rgb & 0xFF;
+
+                // 转换为RGB565（5位红，6位绿，5位蓝）
+                int r5 = (r >> 3) & 0x1F;
+                int g6 = (g >> 2) & 0x3F;
+                int b5 = (b >> 3) & 0x1F;
+
+                // 组合为16位值
+                int rgb565 = (r5 << 11) | (g6 << 5) | b5;
+
+                // 高位在前（大端序）写入字节
+                byteStream.write((rgb565 >> 8) & 0xFF); // 高字节
+                byteStream.write(rgb565 & 0xFF);        // 低字节
+            }
+        }
+
+        byte[] imageData = byteStream.toByteArray();
+
+        // 生成C语言数组文件
+        try (FileOutputStream fos = new FileOutputStream(outputPath)) {
+            // 写入注释行（包含尺寸信息）
+            String header = String.format("/* 0X10,0X10,0X00,0X%02X,0X00,0X%02X,0X01,0X1B, */\n",
+                    width, height);
+            fos.write(header.getBytes());
+
+            // 写入数组声明
+            fos.write("const unsigned char gImage_data[] = {\n".getBytes());
+
+            // 写入数据（每行16个字节）
+            for (int i = 0; i < imageData.length; i++) {
+                // 写入0X前缀
+                fos.write(("0X" + String.format("%02X", imageData[i] & 0xFF)).getBytes());
+
+                // 添加逗号（最后一个除外）
+                if (i < imageData.length - 1) {
+                    fos.write(',');
+                }
+
+                // 换行和缩进
+                if ((i + 1) % 16 == 0) {
+                    fos.write('\n');
+                } else {
+                    fos.write(' ');
+                }
+            }
+
+            // 写入数组结尾
+            fos.write("\n};\n".getBytes());
+        }
+    }
+}