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In order to adjust the local color style of real images in a simple and low-threshold way, and to maintain the harmony of the image and the real effect of the content, this paper proposes a high-fidelity image adjustment method using color envelopes and sliced local optimal transmission. The method uses a simple mask to segment the image; extracts the initial palette and palette weight matrix of each image block through the color envelope of RGB and RGBXY dual color space; uses the sliced local optimal transfer algorithm to achieve the operator to adjust the color style migration of the target related image block, and obtains the template image block; and obtains the template image block through the template image block and the palette weight matrix; and uses the sliced local optimal transfer algorithm to achieve the operator to adjust the color style migration of the target related image block; obtain the optimal color palette of the corresponding image block through the template image block and the palette weight matrix, so as to achieve the effect of automatic adjustment of the color palette. The experimental results show that the proposed method can automatically process other image blocks related to the operator's adjustment target, effectively adjust their color styles, and ensure the global harmony of the image.
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