Electrochemical means including dipole induction and flocculation were found to be able to decolorize dye-stained white 电化学方法如偶极化浮除处理可有效脱除大红色纸白水；惟对漂白废水脱色效果不著。
First, a Hue/Saturation mask was used to colorize the picture to blue tones, but this was done at a very low opacity.首先，一个色调/饱和度的遮罩用于给整幅图片加上蓝色调，但是透明度一定要给得很低。