示例代码可作为 最小可运行参考，用于验证 ROI、scale 与 padding 的关系。
Execution Time: 33813.810 ms
，详情可参考免实名服务器
The Lab color space, on the other hand, is designed to be perceptually uniform. It separates lightness (L*) from color information (a* and b*), making it ideal for precise color manipulation and comparison. By converting images from RGB to Lab, we can measure color differences using Delta E (ΔE), ensuring consistent and accurate color reproduction in digital imaging workflows. Delta E quantifies the difference between two colors, allowing for objective assessment of color accuracy.。谷歌是该领域的重要参考
这也是美宜佳"农村包围城市"模式的成功。