tiff Windows成像组件C＆＃x2B;＆＃x2B;

发布于 2025-01-22 00:05:38 字数 1401 浏览 2 评论 0 原文

我试图将libtiff替换为WIC（因为Libtiff无法通过黑鸭分析工具），

我已经使用了他们的示例

我能够创建一个TIFF。我还需要更改压缩类型因此，我将代码更改为

    if (SUCCEEDED(hr))
        {
            // This is how you customize the TIFF output.
            PROPBAG2 option = { 0 };
            option.pstrName = L"TiffCompressionMethod";
            VARIANT varValue;
            VariantInit(&varValue);
            varValue.vt = VT_UI1;
            varValue.bVal = WICTiffCompressionRLE;
            hr = pPropertybag->Write(1, &option, &varValue);
            if (SUCCEEDED(hr))
            {
                hr = piBitmapFrame->Initialize(pPropertybag);
            }
}

我的新图像具有分辨率单元2 我想将其设置为1

我找到了此 https://learn.microsoft.com/en-us/windows/windows/win32/wic/wic-photoprop-system-image-image-resolutionunit 但是我不明白如何使用WIC元数据API来改变这一点。

你能帮忙吗？

原文

I am trying to replace libtiff into WIC (since libtiff is not able to pass Black Duck Analysis tool anymore)

I have used their example
https://learn.microsoft.com/en-us/windows/win32/wic/-wic-creating-encoder

And I was able to create a tiff.
I also needed to change the compression type
so I change the code into

    if (SUCCEEDED(hr))
        {
            // This is how you customize the TIFF output.
            PROPBAG2 option = { 0 };
            option.pstrName = L"TiffCompressionMethod";
            VARIANT varValue;
            VariantInit(&varValue);
            varValue.vt = VT_UI1;
            varValue.bVal = WICTiffCompressionRLE;
            hr = pPropertybag->Write(1, &option, &varValue);
            if (SUCCEEDED(hr))
            {
                hr = piBitmapFrame->Initialize(pPropertybag);
            }
}

My new image has Resolution Unit 2
and I would like to set it into 1