Using color bands to quickly pull up high contrast purple character pictures

You can use levels in the adjustment panel in Photoshop, or use the shortcut key "Ctrl + L" To open the Levels dialog box. Color level is the histogram form, a picture of the light and dark relationship, from left to right in turn, there is darkness, the middle of the adjustment, high light three sliders. Color levels can be used to adjust the picture's saturation, color, brightness contrast and so on.
Original artwork

Final effect
1, the understanding histogram: The histogram is the digital Image science terminology, In fact, the gray value (in black and white as an example) in all pixels in the proportion of the distribution map, so the horizontal axis is the gray value, ordinate is proportional. The histogram displays the details of the dark part (shown on the left side of the histogram), the midtones (shown in the middle), and highlights (shown in the right section). The

2, to understand the color level channel: Color levels with four channels: RGB, red, green, blue channel. The

The color level histogram has black, gray, white three sliders, The black slider of the coordinates represents the dark part, and the middle slider represents the grayscale, which is the middle tone; the right slider represents pure white, which is high light; the Black slider slides to the right to increase the dark part ...

to the color level after the understanding start color: To open the material, we first observe the histogram of each channel, and then 0-255 color level with no fault, black, white field has no overflow, observe the distribution of its color level is reasonable, and then to one channel adjustment.
3, first look at the RGB channel, You can see the color level distribution is even more uniform, slightly less gray, the gray slider to the right to 0.8, increase the gray level. The dark part overflows slightly, sliding the black slider to the right to 8. The purpose of adjusting the RGB is to adjust the contrast of the picture, increase the degree of Ming, is to add light to the picture.

Look at the red channel, color level without fault, the middle left a slight overflow, showing the picture is red, adjust the gray slider slide to the right to 0.92, increase the green, reduce the red.

4, observe the green channel found that the left side of the dark part of the overflow, the right high light has a fault, The approach is to move the black slider to the right to 14, the gray slider to the right to 0.92, and the white slider to the left to 230.

Finally observe the blue channel, the situation is similar to the green channel, the high light fault is larger, the picture is yellow serious, the processing method is to move the black slider to the right to 25, the gray slider to the right to 1.48, the white slider to the left to 175. The

The contrast effect before and after the adjustment is shown below. The
5, After the original and color adjustment of the picture to compare, we can see that the adjustment has corrected the original image of the color phenomenon, but also increased the contrast of the picture, increased the brightness of the picture, but also changed the image of Hue and saturation, is the picture looks clearer, more beautiful color. Color is finished, we can also give the image to grind the skin, is the picture looks more delicate.

The last thing to say is that adjust the numerical value is not absolute, according to the actual situation of the picture to adjust, everyone in the adjustment should not be a reduction of the value is too large, small numerical slow, while observing the changes in the picture, especially red, green, blue three channels of color change relationship to remember.

Final effect:

Category:

• PS Image Processing