Sharpen/Clear Underwater image

此应用程序澄清水下和海底图像。
■整体
水下的颜色可能很奇怪。
图像将呈现蓝绿色调，看起来不清晰。
此应用程序校正色调并使用算法使它们看起来更清晰。
■这个应用程序在内部做什么
当你下降到水下时，红色首先会消失，这会使图像显得更蓝和更绿。
通过调整每个颜色通道，可以还原颜色，使图像看起来更自然，对比度更高。该算法旨在自动执行此操作。

■算法
1. 计算图像的平均颜色。
2. 将颜色色移到红色通道，直到最小红色平均值为 60。
3. 用新的红色创建 RGB 直方图。
4. 找到低阈值水平和高阈值水平。
5. 归一化数组，使阈值水平等于 0，阈值高等于 255。
■特别感谢
Mr-Bhardwa7
https://pub.dev/packages/underwater_image_color_correction

This application clarifies underwater and undersea images.
■Overall
Colors can be strange underwater.
The image will have a blue-green tint and will not look clear.
This application corrects the color tones and uses algorithms to make them appear clearer.
■What this app does internally
As you descent underwater The red color will disappear as the first thing which will make the image appear more blue and green.
By adjusting each color channel, the colors can be restored and make the image appear more natural with higher contrast. This algorithm aims at doing this automatically.

■The algorithm
1. Calculate the average color for image.
2. Hueshift the colors into the red channel until a minimum red average value of 60.
3. Create RGB histogram with new red color.
4. Find low threshold level and high threshold level.
5. Normalize array so threshold level is equal to 0 and threshold high is equal to 255.
■Special Thanks
Mr-Bhardwa7
https://pub.dev/packages/underwater_image_color_correction