package img; import java.awt.image.BufferedImage; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import javax.imageio.ImageIO; import javax.media.jai.PlanarImage; import org.apache.commons.io.IOUtils; import org.apache.commons.lang.StringUtils; import com.alibaba.simpleimage.ImageFormat; import com.alibaba.simpleimage.ImageWrapper; import com.alibaba.simpleimage.SimpleImageException; import com.alibaba.simpleimage.render.CropParameter; import com.alibaba.simpleimage.render.ScaleParameter; import com.alibaba.simpleimage.render.WatermarkParameter; import com.alibaba.simpleimage.render.WriteParameter; import com.alibaba.simpleimage.render.ScaleParameter.Algorithm; import com.alibaba.simpleimage.util.ImageCropHelper; import com.alibaba.simpleimage.util.ImageDrawHelper; import com.alibaba.simpleimage.util.ImageReadHelper; import com.alibaba.simpleimage.util.ImageScaleHelper; import com.alibaba.simpleimage.util.ImageWriteHelper; /** * 阿里巴巴 simpleimage 图片处理工具类 * 功能 等比例缩放 裁切 加水印 复合操作 * */ public class ImageUtils { public static String WATER_IMAGE_URL = "C:\\img\\watermark.png"; protected static ImageFormat outputFormat = ImageFormat.JPEG; // public static String WATER_IMAGE_URL = RamConstants.getWebRootPath() + // "/images/watermark.png";// 水印图片路径 public static void main(String[] args) { //1.等比例缩放 scaleNormal("C:\\img\\src.jpg", "C:\\img\\scaleNormal.jpg", 400, 600); //2.等比例缩放加水印 scaleWithWaterMark("C:\\img\\src.jpg", "C:\\img\\scaleWithWaterMark.jpg", 400, 600); //3.缩放到指定宽度 scaleWithWidth("C:\\img\\src.jpg", "C:\\img\\scaleWithWidth.jpg", 400); //4.缩放到指定高度 scaleWithHeight("C:\\img\\src.jpg", "C:\\img\\scaleWithHeight.jpg", 600); //5.裁切成正方形 Cut("C:\\img\\src.jpg", "C:\\img\\cut.jpg"); //6.从中间裁切 CutCenter("C:\\img\\src.jpg", "C:\\img\\cutCenter.jpg", 400, 600); } /** * * @param pInput * @param pImgeFlag * @return * @throws Exception */ public static boolean isPicture(String pInput, String pImgeFlag) throws Exception { if (StringUtils.isBlank(pInput)) { return false; } String tmpName = pInput.substring(pInput.lastIndexOf(".") + 1, pInput.length()); String imgeArray[][] = {{"bmp", "0"}, {"dib", "1"}, {"gif", "2"}, {"jfif", "3"}, {"jpe", "4"}, {"jpeg", "5"}, {"jpg", "6"}, {"png", "7"}, {"tif", "8"}, {"tiff", "9"}, {"ico", "10"}}; for (int i = 0; i < imgeArray.length; i++) { if (!StringUtils.isBlank(pImgeFlag) && imgeArray[i][0].equals(tmpName.toLowerCase()) && imgeArray[i][1].equals(pImgeFlag)) { return true; } if (StringUtils.isBlank(pImgeFlag) && imgeArray[i][0].equals(tmpName.toLowerCase())) { return true; } } return false; } /** * 等比例缩放 会裁切部分内容 * @param src * @param target * @param width * @param height */ @SuppressWarnings("static-access") public final static void scaleNormal(String src, String target, int width, int height) { File out = new File(target); // 目的图片 FileOutputStream outStream = null; File in = new File(src); // 原图片 FileInputStream inStream = null; try { inStream = new FileInputStream(in); ImageWrapper imageWrapper = ImageReadHelper.read(inStream); int w = imageWrapper.getWidth(); int h = imageWrapper.getHeight(); // 1.缩放 ScaleParameter scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); // 缩放参数 CropParameter cropParam = new CropParameter(0, 0, width, height);// 裁切参数 float srcRatio = (float) w / h; float dstRatio = (float) width / height;// 源宽高比和目标宽高比 if (w < width && h < height) {// 如果图片宽和高都小于目标图片则不做缩放处理 scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); cropParam = new CropParameter(0, 0, w, h); } else if (srcRatio >= dstRatio) { int newWidth = getWidth(w, h, height); scaleParam = new ScaleParameter(newWidth + 1, height, Algorithm.LANCZOS); cropParam = new CropParameter((newWidth - width) / 2, 0, width, height); } else if (srcRatio < dstRatio) { int newHeight = getHeight(w, h, width); scaleParam = new ScaleParameter(width, newHeight + 1, Algorithm.LANCZOS); cropParam = new CropParameter(0, (newHeight - height) / 2, width, height); } PlanarImage planrImage = ImageScaleHelper.scale(imageWrapper.getAsPlanarImage(), scaleParam); // 2.裁切 imageWrapper = new ImageWrapper(planrImage); planrImage = ImageCropHelper.crop(planrImage, cropParam); imageWrapper = new ImageWrapper(planrImage); // 4.输出 outStream = new FileOutputStream(out); String prefix = out.getName().substring(out.getName().lastIndexOf(".") + 1); ImageWriteHelper.write(imageWrapper, outStream, outputFormat.getImageFormat(prefix), new WriteParameter()); } catch (IOException e) { e.printStackTrace(); } catch (SimpleImageException e) { } finally { IOUtils.closeQuietly(inStream); // 图片文件输入输出流必须记得关闭 IOUtils.closeQuietly(outStream); } } /** * 压缩图片到 指定尺寸,图片比目标图片小则不会变形(有水印） * * @param src * @param target * @param width * @param height */ public final static void scaleWithWaterMark(String src, String target, int width, int height) { File out = new File(target); // 目的图片 FileOutputStream outStream = null; File in = new File(src); // 原图片 FileInputStream inStream = null; try { inStream = new FileInputStream(in); ImageWrapper imageWrapper = ImageReadHelper.read(inStream); int w = imageWrapper.getWidth(); int h = imageWrapper.getHeight(); // 1.缩放 ScaleParameter scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); // 缩放参数 CropParameter cropParam = new CropParameter(0, 0, width, height);// 裁切参数 float srcRatio = (float) w / h; float dstRatio = (float) width / height;// 源宽高比和目标宽高比 if (w < width && h < height) {// 如果图片宽和高都小于目标图片则不做缩放处理 scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); cropParam = new CropParameter(0, 0, w, h); } else if (srcRatio >= dstRatio) { int newWidth = getWidth(w, h, height); scaleParam = new ScaleParameter(newWidth + 1, height, Algorithm.LANCZOS); cropParam = new CropParameter((newWidth - width) / 2, 0, width, height); } else if (srcRatio < dstRatio) { int newHeight = getHeight(w, h, width); scaleParam = new ScaleParameter(width, newHeight + 1, Algorithm.LANCZOS); cropParam = new CropParameter(0, (newHeight - height) / 2, width, height); } PlanarImage planrImage = ImageScaleHelper.scale(imageWrapper.getAsPlanarImage(), scaleParam); // 2.裁切 imageWrapper = new ImageWrapper(planrImage); planrImage = ImageCropHelper.crop(planrImage, cropParam); // 3.打水印 BufferedImage waterImage = ImageIO.read(new File(WATER_IMAGE_URL)); ImageWrapper waterWrapper = new ImageWrapper(waterImage); WatermarkParameter param = new WatermarkParameter(waterWrapper, 1, 0, 0); imageWrapper = new ImageWrapper(planrImage); BufferedImage bufferedImage = ImageDrawHelper.drawWatermark(imageWrapper.getAsBufferedImage(), param); imageWrapper = new ImageWrapper(bufferedImage); // 4.输出 outStream = new FileOutputStream(out); String prefix = out.getName().substring(out.getName().lastIndexOf(".") + 1); ImageWriteHelper.write(imageWrapper, outStream, outputFormat.getImageFormat(prefix), new WriteParameter()); } catch (IOException e) { e.printStackTrace(); } catch (SimpleImageException e) { } finally { IOUtils.closeQuietly(inStream); // 图片文件输入输出流必须记得关闭 IOUtils.closeQuietly(outStream); } } /** * 缩放到指定宽度 高度自适应 * @param src * @param target * @param width */ @SuppressWarnings("static-access") public final static void scaleWithWidth(String src, String target, Integer width) { File out = new File(target); // 目的图片 FileOutputStream outStream = null; File in = new File(src); // 原图片 FileInputStream inStream = null; try { inStream = new FileInputStream(in); ImageWrapper imageWrapper = ImageReadHelper.read(inStream); int w = imageWrapper.getWidth(); int h = imageWrapper.getHeight(); // 1.缩放 ScaleParameter scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); // 缩放参数 if (w < width) {// 如果图片宽和高都小于目标图片则不做缩放处理 scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); } else { int newHeight = getHeight(w, h, width); scaleParam = new ScaleParameter(width, newHeight + 1, Algorithm.LANCZOS); } PlanarImage planrImage = ImageScaleHelper.scale(imageWrapper.getAsPlanarImage(), scaleParam); imageWrapper = new ImageWrapper(planrImage); // 4.输出 outStream = new FileOutputStream(out); String prefix = out.getName().substring(out.getName().lastIndexOf(".") + 1); ImageWriteHelper.write(imageWrapper, outStream, outputFormat.getImageFormat(prefix), new WriteParameter()); } catch (IOException e) { e.printStackTrace(); } catch (SimpleImageException e) { } finally { IOUtils.closeQuietly(inStream); // 图片文件输入输出流必须记得关闭 IOUtils.closeQuietly(outStream); } } /** * 缩放到指定高度，宽度自适应 * @param src * @param target * @param height */ public final static void scaleWithHeight(String src, String target, Integer height) { File out = new File(target); // 目的图片 FileOutputStream outStream = null; File in = new File(src); // 原图片 FileInputStream inStream = null; try { inStream = new FileInputStream(in); ImageWrapper imageWrapper = ImageReadHelper.read(inStream); int w = imageWrapper.getWidth(); int h = imageWrapper.getHeight(); // 1.缩放 ScaleParameter scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); // 缩放参数 if (w < height) {// 如果图片宽和高都小于目标图片则不做缩放处理 scaleParam = new ScaleParameter(w, h, Algorithm.LANCZOS); } else { int newWidth = getWidth(w, h, height); scaleParam = new ScaleParameter(newWidth + 1, height, Algorithm.LANCZOS); } PlanarImage planrImage = ImageScaleHelper.scale(imageWrapper.getAsPlanarImage(), scaleParam); imageWrapper = new ImageWrapper(planrImage); // 4.输出 outStream = new FileOutputStream(out); String prefix = out.getName().substring(out.getName().lastIndexOf(".") + 1); ImageWriteHelper.write(imageWrapper, outStream, outputFormat.getImageFormat(prefix), new WriteParameter()); } catch (IOException e) { e.printStackTrace(); } catch (SimpleImageException e) { } finally { IOUtils.closeQuietly(inStream); // 图片文件输入输出流必须记得关闭 IOUtils.closeQuietly(outStream); } } /** * 根据宽、高和目标宽度 等比例求高度 * @param w * @param h * @param width * @return */ public static Integer getHeight(Integer w, Integer h, Integer width) { return h * width / w; } /** * 根据宽、高和目标高度 等比例求宽度 * * @param w * @param h * @param height * @return */ public static Integer getWidth(Integer w, Integer h, Integer height) { return w * height / h; } /** * 从中间裁切需要的大小 * @param src * @param target * @param width * @param height */ @SuppressWarnings("static-access") public final static void CutCenter(String src, String target, Integer width, Integer height) { File out = new File(target); // 目的图片 FileOutputStream outStream = null; File in = new File(src); // 原图片 FileInputStream inStream = null; try { inStream = new FileInputStream(in); ImageWrapper imageWrapper = ImageReadHelper.read(inStream); int w = imageWrapper.getWidth(); int h = imageWrapper.getHeight(); int x = (w - width) / 2; int y = (h - height) / 2; CropParameter cropParam = new CropParameter(x, y, width, height);// 裁切参数 if (x < 0 || y < 0) { cropParam = new CropParameter(0, 0, w, h);// 裁切参数 } PlanarImage planrImage = ImageCropHelper.crop(imageWrapper.getAsPlanarImage(), cropParam); imageWrapper = new ImageWrapper(planrImage); // 4.输出 outStream = new FileOutputStream(out); String prefix = out.getName().substring(out.getName().lastIndexOf(".") + 1); ImageWriteHelper.write(imageWrapper, outStream, outputFormat.getImageFormat(prefix), new WriteParameter()); } catch (IOException e) { e.printStackTrace(); } catch (SimpleImageException e) { } finally { IOUtils.closeQuietly(inStream); // 图片文件输入输出流必须记得关闭 IOUtils.closeQuietly(outStream); } } /** * 裁切 为正文形 * @param src * @param target */ public final static void Cut(String src, String target) { File out = new File(target); // 目的图片 FileOutputStream outStream = null; File in = new File(src); // 原图片 FileInputStream inStream = null; try { inStream = new FileInputStream(in); ImageWrapper imageWrapper = ImageReadHelper.read(inStream); int w = imageWrapper.getWidth(); int h = imageWrapper.getHeight(); int width = 0; int height = 0; if (w >= h) { width = h; height = h; } else { width = w; height = w; } CropParameter cropParam = new CropParameter(0, 0, width, height);// 裁切参数 PlanarImage planrImage = ImageCropHelper.crop(imageWrapper.getAsPlanarImage(), cropParam); imageWrapper = new ImageWrapper(planrImage); // 4.输出 outStream = new FileOutputStream(out); String prefix = out.getName().substring(out.getName().lastIndexOf(".") + 1); ImageWriteHelper.write(imageWrapper, outStream, outputFormat.getImageFormat(prefix), new WriteParameter()); } catch (IOException e) { e.printStackTrace(); } catch (SimpleImageException e) { } finally { IOUtils.closeQuietly(inStream); // 图片文件输入输出流必须记得关闭 IOUtils.closeQuietly(outStream); } } }
