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我有一个Rails的图片上传下面的代码:CarrierWave:从未经处理的图像创建拇指
class PhotoUploader < BaseUploader
...
# Create different versions of your uploaded files:
version :thumb do
process :resize_to_fill => [80, 80]
end
# Process files as they are uploaded:
process resize_to_fit: [618, 412]
process convert: 'png'
process :watermark
process convert: 'jpg'
def watermark
manipulate! do |img|
logo = Magick::Image.read("#{Rails.root}/app/assets/images/watermark.png").first
img = img.composite(logo, Magick::NorthEastGravity, 0, 20, Magick::OverCompositeOp)
end
end
end
基本上,我想两两件事:
- 添加水印原始图像
- 创建原始图像的缩略图(没有水印)
但是,它显示为虽然水印处理在创建缩略图之前发生,但是有没有办法解决这个问题?