NativeJpg, by SimDesign satisfies the at least the first three criteria, and does support lossless 90° rotations. Your test image shows correctly (brown) when laoded using it, and it supports quite a few other color spaces besides the Adobe one. Some images can be slightly different colors than Photoshop, and according to the author that's due to ambiguities in the spec; Opera and various other image viewers decode them the same way.
Most of the JPEG properties and support are exposed through its own class structures, but there is a TGraphic descendant as well. It's 100% Delphi. It was previously commercial, but it's open source now, with a BSD license, and an option to purchase support and access to beta releases.
The current version (1.32) is available in the forums.
Try the NativeJpg v.1.30, this library detects the Adobe APP14 marker and decode the JPEG image correctly, I test this library against you brown/blue image and works perfectly. even comes with a demo application which you can use to load your jpeg images and test the library before to use it.
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SimDesign 的 NativeJpg 至少满足前三个标准，并且支持无损 90° 旋转。使用它加载时，您的测试图像可以正确显示（棕色），并且除了 Adobe 之外，它还支持相当多的其他颜色空间。有些图像的颜色可能与 Photoshop 略有不同，据作者称，这是由于规范中的含糊之处； Opera 和其他各种图像查看器以相同的方式对其进行解码。
大多数 JPEG 属性和支持都是通过其自己的类结构公开的，但也有一个 TGraphic 后代。 100% 德尔福。它以前是商业的，但现在是开源的，具有 BSD 许可证，并且可以选择购买支持和访问测试版。
当前版本 (1.32) 可在 论坛 中获取。
NativeJpg, by SimDesign satisfies the at least the first three criteria, and does support lossless 90° rotations. Your test image shows correctly (brown) when laoded using it, and it supports quite a few other color spaces besides the Adobe one. Some images can be slightly different colors than Photoshop, and according to the author that's due to ambiguities in the spec; Opera and various other image viewers decode them the same way.
Most of the JPEG properties and support are exposed through its own class structures, but there is a TGraphic descendant as well. It's 100% Delphi. It was previously commercial, but it's open source now, with a BSD license, and an option to purchase support and access to beta releases.
The current version (1.32) is available in the forums.
尝试
NativeJpg v.1.30，该库检测Adobe APP14标记并正确解码 JPEG 图像，我针对棕色/蓝色图像测试了该库，效果完美。甚至还附带一个 演示应用程序，您可以使用它来加载 jpeg 图像并测试库在使用它之前。Try the
NativeJpg v.1.30, this library detects theAdobe APP14marker and decode the JPEG image correctly, I test this library against you brown/blue image and works perfectly. even comes with a demo application which you can use to load your jpeg images and test the library before to use it.