Google App Engine & Java : 图片拇指

Question

我正在尝试将图像调整大小并将其裁剪到 Google App 引擎中以创建缩略图

我希望能够创建任意大小的 200x150 拇指。

这是我目前使用的代码，现在我需要对其进行裁剪，使其不超过 200x150：

    Image oldImage = ImagesServiceFactory.makeImage(picture);
    //Create the Image Service Factory and the Resize Transform
    ImagesService imagesService = ImagesServiceFactory.getImagesService();
    int w = 0;
    int h = 0;
    if (oldImage.getWidth() > oldImage.getHeight()) {
        w = 1000;
        h = height;
    } else {
        h = 1000;
        w = width;
    }
    Transform resize = ImagesServiceFactory.makeResize(w, h);
    //Resize The Image using the transform created above
    Image resizedImage = imagesService.applyTransform(resize, oldImage);

    Transform crop = ImagesServiceFactory.makeCrop(0.0, 0.0, width / resizedImage.getHeight(), height / resizedImage.getHeight());

    Image cropedImage = imagesService.applyTransform(crop, resizedImage);

    //Serve the newly transformed image
    return cropedImage.getImageData();

谢谢！

Answer 1

我使用getServingUrl动态地通过谷歌应用引擎提供缩略图

它可以调整大小和裁剪，只存储一张动态调整大小和裁剪的图像。由于我对该解决方案非常满意，我希望它也可以为您服务。

Answer 2

您的oldImage 宽度小于 200 像素。