From 7a372033d44ba48383d9d1bc97e5d583b26a266f Mon Sep 17 00:00:00 2001 From: KKSU <15274802129@163.com> Date: Thu, 22 Aug 2024 16:41:59 +0800 Subject: [PATCH] 后台 --- src/main/java/cc/mrbird/febs/mall/test/imageTest.java | 194 ++++++++++++++++++++++++------------------------ 1 files changed, 97 insertions(+), 97 deletions(-) diff --git a/src/main/java/cc/mrbird/febs/mall/test/imageTest.java b/src/main/java/cc/mrbird/febs/mall/test/imageTest.java index 6458e9c..821c5ef 100644 --- a/src/main/java/cc/mrbird/febs/mall/test/imageTest.java +++ b/src/main/java/cc/mrbird/febs/mall/test/imageTest.java @@ -1,100 +1,100 @@ -package cc.mrbird.febs.mall.test; - -import com.sun.image.codec.jpeg.JPEGCodec; -import com.sun.image.codec.jpeg.JPEGEncodeParam; -import com.sun.image.codec.jpeg.JPEGImageEncoder; - -import javax.imageio.ImageIO; -import javax.swing.*; -import java.awt.*; -import java.awt.image.BufferedImage; -import java.awt.image.ConvolveOp; -import java.awt.image.Kernel; -import java.awt.image.RenderedImage; -import java.io.File; -import java.io.FileOutputStream; -import java.io.IOException; - -public class imageTest { - - public static void main(String[] args) throws IOException { - -// File originalImage = new File("D:\\image\\out.png"); -// try{ -// RenderedImage rendImage =getGray.gray(ImageIO.read(new File("D:\\image\\input.png"))); -// ImageIO.write(rendImage, "png", originalImage); -// }catch(IOException e){ -// System.out.println(e); -// } - - - - File originalImage = new File("D:\\image\\input.png"); - System.out.println("源文件大小" + originalImage.length()); - File resizedImg1 = new File("D:\\image\\out3.png"); - resize(originalImage, resizedImg1, Integer.parseInt(Long.toString(originalImage.length())), 0.1f); - System.out.println("0.1转换后文件大小" + resizedImg1.length()); - - } -// ## 遍历文件夹下图片批量压缩 -// public static void main(String[] args) throws IOException { -// File folder = new File("C:\\Users\\Win\\Desktop\\faceImages");//文件夹路径 -// File[] listOfFiles = folder.listFiles(); -// for (int i = 0; i < listOfFiles.length; i++) { -// if (listOfFiles[i].isFile()) { -// File originalImage = listOfFiles[i]; -// System.out.println("源文件大小" + originalImage.length()); -// String fileName = originalImage.getName(); -// File resizedImg1 = new File("C:\\Users\\Win\\Desktop\\productImages\\" + fileName); -// resize(originalImage, resizedImg1, 64, 0.9f); -// System.out.println(fileName + "0.8转换后文件大小" + resizedImg1.length()); -// } else if (listOfFiles[i].isDirectory()) { -// System.out.println("Directory " + listOfFiles[i].getName()); -// } -// } +//package cc.mrbird.febs.mall.test; // +//import com.sun.image.codec.jpeg.JPEGCodec; +//import com.sun.image.codec.jpeg.JPEGEncodeParam; +//import com.sun.image.codec.jpeg.JPEGImageEncoder; +// +//import javax.imageio.ImageIO; +//import javax.swing.*; +//import java.awt.*; +//import java.awt.image.BufferedImage; +//import java.awt.image.ConvolveOp; +//import java.awt.image.Kernel; +//import java.awt.image.RenderedImage; +//import java.io.File; +//import java.io.FileOutputStream; +//import java.io.IOException; +// +//public class imageTest { +// +// public static void main(String[] args) throws IOException { +// +//// File originalImage = new File("D:\\image\\out.png"); +//// try{ +//// RenderedImage rendImage =getGray.gray(ImageIO.read(new File("D:\\image\\input.png"))); +//// ImageIO.write(rendImage, "png", originalImage); +//// }catch(IOException e){ +//// System.out.println(e); +//// } +// +// +// +// File originalImage = new File("D:\\image\\input.png"); +// System.out.println("源文件大小" + originalImage.length()); +// File resizedImg1 = new File("D:\\image\\out3.png"); +// resize(originalImage, resizedImg1, Integer.parseInt(Long.toString(originalImage.length())), 0.1f); +// System.out.println("0.1转换后文件大小" + resizedImg1.length()); // // } - - /** - * 缩放图片(压缩图片质量,改变图片尺寸) - * 若原图宽度小于新宽度,则宽度不变! - * @param newWidth 新的宽度 - * @param quality 图片质量参数 0.7f 相当于70%质量 - */ - public static void resize(File originalFile, File resizedFile, int newWidth, float quality) throws IOException { - if (quality > 1) { - } - ImageIcon ii = new ImageIcon(originalFile.getCanonicalPath()); - Image i = ii.getImage(); - Image resizedImage = null; - int iWidth = i.getWidth(null); - int iHeight = i.getHeight(null); - if (iWidth < newWidth) { - newWidth = iWidth; - } - if (iWidth > iHeight) { - resizedImage = i.getScaledInstance(newWidth, (newWidth * iHeight) / iWidth, Image.SCALE_SMOOTH); - } else { - resizedImage = i.getScaledInstance((newWidth * iWidth) / iHeight, newWidth, Image.SCALE_SMOOTH); - } - Image temp = new ImageIcon(resizedImage).getImage(); - BufferedImage bufferedImage = new BufferedImage(temp.getWidth(null), temp.getHeight(null), BufferedImage.TYPE_INT_RGB); - Graphics g = bufferedImage.createGraphics(); - g.setColor(Color.white); - g.fillRect(0, 0, temp.getWidth(null), temp.getHeight(null)); - g.drawImage(temp, 0, 0, null); - g.dispose(); - float softenFactor = 0.05f; - float[] softenArray = {0, softenFactor, 0, softenFactor, 1 - (softenFactor * 4), softenFactor, 0, softenFactor, 0}; - Kernel kernel = new Kernel(3, 3, softenArray); - ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null); - bufferedImage = cOp.filter(bufferedImage, null); - FileOutputStream out = new FileOutputStream(resizedFile); - JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); - JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bufferedImage); - param.setQuality(quality, true); - encoder.setJPEGEncodeParam(param); - encoder.encode(bufferedImage); - } -} +//// ## 遍历文件夹下图片批量压缩 +//// public static void main(String[] args) throws IOException { +//// File folder = new File("C:\\Users\\Win\\Desktop\\faceImages");//文件夹路径 +//// File[] listOfFiles = folder.listFiles(); +//// for (int i = 0; i < listOfFiles.length; i++) { +//// if (listOfFiles[i].isFile()) { +//// File originalImage = listOfFiles[i]; +//// System.out.println("源文件大小" + originalImage.length()); +//// String fileName = originalImage.getName(); +//// File resizedImg1 = new File("C:\\Users\\Win\\Desktop\\productImages\\" + fileName); +//// resize(originalImage, resizedImg1, 64, 0.9f); +//// System.out.println(fileName + "0.8转换后文件大小" + resizedImg1.length()); +//// } else if (listOfFiles[i].isDirectory()) { +//// System.out.println("Directory " + listOfFiles[i].getName()); +//// } +//// } +//// +//// +//// } +// +// /** +// * 缩放图片(压缩图片质量,改变图片尺寸) +// * 若原图宽度小于新宽度,则宽度不变! +// * @param newWidth 新的宽度 +// * @param quality 图片质量参数 0.7f 相当于70%质量 +// */ +// public static void resize(File originalFile, File resizedFile, int newWidth, float quality) throws IOException { +// if (quality > 1) { +// } +// ImageIcon ii = new ImageIcon(originalFile.getCanonicalPath()); +// Image i = ii.getImage(); +// Image resizedImage = null; +// int iWidth = i.getWidth(null); +// int iHeight = i.getHeight(null); +// if (iWidth < newWidth) { +// newWidth = iWidth; +// } +// if (iWidth > iHeight) { +// resizedImage = i.getScaledInstance(newWidth, (newWidth * iHeight) / iWidth, Image.SCALE_SMOOTH); +// } else { +// resizedImage = i.getScaledInstance((newWidth * iWidth) / iHeight, newWidth, Image.SCALE_SMOOTH); +// } +// Image temp = new ImageIcon(resizedImage).getImage(); +// BufferedImage bufferedImage = new BufferedImage(temp.getWidth(null), temp.getHeight(null), BufferedImage.TYPE_INT_RGB); +// Graphics g = bufferedImage.createGraphics(); +// g.setColor(Color.white); +// g.fillRect(0, 0, temp.getWidth(null), temp.getHeight(null)); +// g.drawImage(temp, 0, 0, null); +// g.dispose(); +// float softenFactor = 0.05f; +// float[] softenArray = {0, softenFactor, 0, softenFactor, 1 - (softenFactor * 4), softenFactor, 0, softenFactor, 0}; +// Kernel kernel = new Kernel(3, 3, softenArray); +// ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null); +// bufferedImage = cOp.filter(bufferedImage, null); +// FileOutputStream out = new FileOutputStream(resizedFile); +// JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); +// JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bufferedImage); +// param.setQuality(quality, true); +// encoder.setJPEGEncodeParam(param); +// encoder.encode(bufferedImage); +// } +//} -- Gitblit v1.9.1