为什么 Crystal Report 中的白色背景图像不显示为纯白色? [英] Why images in Crystal Report with white background doesn't show as pure white?

问题描述

我将图像放入水晶报表中(使用 Crystal Reports for Visual Studio 2005).图片是白色背景的产品标志，报告也是白色背景.但是当我运行报告时，您会发现它不是很白.灰白色几乎不可见，但在打印时可见且更明显.

I'm putting an image in a crystal report (using Crystal Reports for Visual Studio 2005). The image is a product logo with a white background, and the report has a white background too. But when I run the report you can see it's not quite white. The off-white color is barely visible, but it is visible and more so when printed.

我尝试了多种图像格式，也尝试了透明图像，但它们似乎不起作用(透明像素显示为黑色).当我使用不同的图像时，我注意到微弱的非白色会发生变化 - 好像它是图像中颜色的函数.

I've tried a variety of image formats, and tried transparent images too but they don't seem to work (transparent pixels show as black). When I use a different image I notice that the faint non-white color changes - as if it's a function of the colors in the image.

其他人遇到过这个吗?有什么建议吗?

Anyone else encountered this? Any suggestions?

推荐答案

可以直接在报表中勾选选项:Retain Original Image Color Depth解决.

It can be solved directly in the report by checking the option: Retain Original Image Color Depth.

文档说:

如果您希望报告中的图像在封装时保持其原始颜色深度，请选择此选项.否则，所有图像在封装之前都将转换为每像素 8 位.

If you want images in your report to keep their original color depth when they are encapsulated, select this option. Otherwise, all images are converted to 8 bits per pixel before being encapsulated.

要检查此选项，请转到:

To check this option go to:

文件 -> 报告选项 -> 保留原始图像颜色深度.

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