How to extract pencil line art with SAI

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If you know PS (photoshopcs2), first import the blank space with the magic wand and do a feathere;

If the effect is not good, adjust it slowly.

Hope it helps!!

Haven't you already withdrawn it?

Use channel adjustments. If there are more than one sheet, you can design an action.

1. Open the ** that needs to be extracted.

2. Open the action surface such as the simple board, establish the action, and set the shortcut key F10 (note that the shortcut key can be set up by yourself, usually don't mix it with other shortcut keys).

3. Open the Channels panel.

4. Copy the blue channel. (Hint: Drag the blue channel to the new button below).

5. Select the copied blue channel copy first, and then image-adjust-invert. (or just Ctrl+I).

6. Ctrl+L to open the Levels panel, adjust the left triangle black block and the right triangle white block. Make the lines in the blue copy channel white enough and black enough around them.

7. Hold down the Ctrl key and click on the blue channel copy. A selection appears.

8. Select the RGB channel, and at this time select the line in **.

9. Press Ctrl+C to copy the line.

10. Layer Panel - New Layer, select the new layer, and then Ctrl+V paste.

12. On the action panel, click the stop button of the square.

Okay, feel free to open a **, and then click F10, photoshop can automatically complete the above tasks. I remember being able to use the pen tool, but I forgot about it.

Draw on the basis of the draft and make your own revisions.

Draw a new layer directly and draw it as a line drawing. Needless to say, it's a transparent layer in itself

Are you extracting the line that scanned in?

SAI doesn't have those processing functions.,The most perfect thing is to describe it.。

First open the original image, then adjust the transparency of the layer to about 50%, and then create a new layer [or pen layer], just draw the line normally, there is no quick way.

If you use a normal layer, it is recommended to use the pencil tool [shortcut key n], and adjust the color to a more eye-catching red or dark red, in short, it should form a certain contrast with the color of the original image to prevent confusion.

If you are a novice, it is recommended to use a pen layer, which is more convenient to adjust, and the color is also red or dark red, but the pen layer is not pressure-sensitive, and you can only adjust it yourself with the [pen pressure] function in the later stage.

If you tend to shake the line, you can try flipping the diagram up and down and drawing the line, or enlarge the diagram so that the eye can only see some lines at a time instead of the whole thing. In this way, the information submitted to the human brain is the line you want to draw, not some whole **, which is very useful for novices!

Finally, it's time to practice! SAI doesn't have as many filters like PS.

Hope it helps!