第一开始只能支持小尺寸的图片,宽度200或者以下的,稍微大点的出来的效果就走样了。
于是我便在转码之前改变了一下图片的大小。
效果如下
原图
转后图
废话不多说,呈上代码。
package com; import javax.imageio.ImageIO; import javax.swing.*; import java.awt.*; import java.awt.image.BufferedImage; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; /** * 图片转化Ascii */ public class AsciiPic { /* * 将image转换成bufferimage */ public static BufferedImage toBufferedImage(Image image) { if (image instanceof BufferedImage) { return (BufferedImage)image; } // 加载所有像素 image = new ImageIcon(image).getImage(); BufferedImage bimage = null; GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); try { int transparency = Transparency.OPAQUE; // 创建buffer图像 GraphicsDevice gs = ge.getDefaultScreenDevice(); GraphicsConfiguration gc = gs.getDefaultConfiguration(); bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency); } catch (HeadlessException e) { e.printStackTrace(); } if (bimage == null) { int type = BufferedImage.TYPE_INT_RGB; bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type); } // 复制 Graphics g = bimage.createGraphics(); // 赋值 g.drawImage(image, 0, 0, null); g.dispose(); return bimage; } public static Image creatImage(String Imgpath) { Image srcImg = null; try { srcImg = ImageIO.read(new FileInputStream(Imgpath)); } catch (FileNotFoundException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } //取源图 int width = 200; //假设要缩小到200点像素 int height = srcImg.getHeight(null)*200/srcImg.getWidth(null);//按比例,将高度缩减 Image smallImg =srcImg.getScaledInstance(width, height, Image.SCALE_SMOOTH);//缩小 return smallImg; } /** * @param bfimage 图片路径 */ public static void createAsciiPic(BufferedImage bfimage) throws IOException { final String base = "@#&$%*o!;.";// 字符串由复杂到简单 final BufferedImage image = bfimage; for (int y = 0; y < image.getHeight(); y += 2) { for (int x = 0; x < image.getWidth(); x++) { final int pixel = image.getRGB(x, y); final int r = (pixel & 0xff0000) >> 16, g = (pixel & 0xff00) >> 8, b = pixel & 0xff; final float gray = 0.299f * r + 0.578f * g + 0.114f * b; final int index = Math.round(gray * (base.length() + 1) / 255); System.out.print(index >= base.length() ? " " : String.valueOf(base.charAt(index))); } System.out.println(); } } public static void main(final String[] args) { try { AsciiPic.createAsciiPic(toBufferedImage(creatImage("/Users/liurenkui/Desktop/boy.jpeg"))); } catch (IOException e) { e.printStackTrace(); } } }
Ascii输出在控制台,若想直接保存图片可进行修改
来自CSDN作者:VERMAN_S
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