亮度对比度增强功能存在显示问题，已找到问题并修改

[thgpddl]

在“视图”--“亮度对比度”功能中，修改亮度或对比度后，导致图像画面损坏，效果如下图：

经过排查，是在“BrightnessContrastDialog”类的“on_new_value”函数中有问题：

    def on_new_value(self, _):
        """On new value event"""
        brightness = self.slider_brightness.value() / 50.0
        contrast = self.slider_contrast.value() / 50.0

        img = self.img
        if brightness != 1:
            img = PIL.ImageEnhance.Brightness(img).enhance(brightness)
        if contrast != 1:
            img = PIL.ImageEnhance.Contrast(img).enhance(contrast)
        # 此处PIL图像为RGBA模式
       
       # 但是在下方使用了RGB模式，导致显示出现问题
        qimage = QImage(
            img.tobytes(), img.width, img.height, QImage.Format_RGB888
        )
        self.callback(qimage)  # qimage已经是处理后的图片

解决办法为将PIL的RGBA模式转为RGB模式即可：

        img = self.img
        if brightness != 1:
            img = PIL.ImageEnhance.Brightness(img).enhance(brightness)
        if contrast != 1:
            img = PIL.ImageEnhance.Contrast(img).enhance(contrast)
        
        img = img.convert("RGB")   #新增颜色模式转换代码
              
        qimage = QImage(
            img.tobytes(), img.width, img.height, QImage.Format_RGB888
        )

现在图像正常：

[CVHub520]

Hi, @thgpddl:

Thank you very much for reporting the brightness and contrast enhancement display issue 🙏.

The issue has been resolved by converting the image to RGB mode. Additionally, i have made some optimizations including adding a reset button 🔄. Please update to the latest version to see these improvements 🚀.

[thgpddl]

Hi, @thgpddl:

Thank you very much for reporting the brightness and contrast enhancement display issue 🙏.

The issue has been resolved by converting the image to RGB mode. Additionally, i have made some optimizations including adding a reset button 🔄. Please update to the latest version to see these improvements 🚀.

感谢您的工作，但是现在遇到了新的问题，当我打开一个图片文件夹后，调整亮度对比度后，通过按键"D"打开下一张图片时程序闪退，并报错如下：

TypeError: BrightnessContrastDialog.on_new_value() takes 1 positional argument but 2 were given
已放弃 (核心已转储)

[CVHub520]

Hi, @thgpddl:
Thank you very much for reporting the brightness and contrast enhancement display issue 🙏.
The issue has been resolved by converting the image to RGB mode. Additionally, i have made some optimizations including adding a reset button 🔄. Please update to the latest version to see these improvements 🚀.

感谢您的工作，但是现在遇到了新的问题，当我打开一个图片文件夹后，调整亮度对比度后，通过按键"D"打开下一张图片时程序闪退，并报错如下：

TypeError: BrightnessContrastDialog.on_new_value() takes 1 positional argument but 2 were given
已放弃 (核心已转储)

Fixed. Please git pull the latest code and try to adjust the brightness and contrast again. 😄