我们研究了曼陀罗绘画作品中使用的颜色，并尝试通过颜色来分析这些作品。为了进行有效的颜色识别，我们使用了计算机视觉技术，并对每幅画的颜色进行了采样和分析。我们还使用了统计学方法来分析颜色使用的频率，并根据这些结果对曼陀罗的画作进行了分类。结果表明，曼陀罗的画作大多使用蓝色、绿色和红色，并且在其艺术生涯的不同时期使用颜色的频率有所变化。我们还发现，在曼陀罗的某些画作中，颜色使用更加复杂，而在其他画作中，颜色使用更加简单。 总之，本文的研究表明，通过对曼陀罗画作的颜色进行分析，可以更好地了解其艺术风格和发展变化，并为进一步研究艺术家的生涯和作品提供有价值的信息。将这段话用英语翻译

We studied the colors used in Mandel's paintings and tried to analyze these works through the colors. In order to effectively recognize the colors, we used computer vision techniques and sampled and analyzed the colors of each painting. We also used statistical methods to analyze the frequency of color usage and classified Mandel's paintings based on these results. The results showed that Mandel's paintings mostly used blue, green, and red, and the frequency of color usage changed at different times in his artistic career. We also found that in some of Mandel's paintings, color usage was more complex, while in others, it was simpler. In summary, our research shows that by analyzing the colors of Mandel's paintings, we can better understand his artistic style and development changes, and provide valuable information for further research on the artist's career and works.