How To Make Transparent Background On Paint Tool Sai

So, y'all simply scanned or took a movie of your hand-drawn line art with your smartphone and, you go to color information technology to find that information technology just doesn't look as set up to color equally the original. At times like these, information technology's best to excerpt your line piece of work and convert information technology into something more suited for digital coloring. You can do this by using the Convert Brightness to Opacity function in Clip Studio Pigment and SAI or the Alpha Channel function in Photoshop.

Adjusting the Image Color

Using our graphics software of choice, we'll begin by opening the scanned or photo paradigm of our illustration.

Even though the original image is blackness lines on white newspaper, the imported image ends up with either a grey tone to it, or the lines aren't as strong equally in the original. To gear up this event, we volition arrange the image so that the groundwork is completely white and the lines are solid and clear. The method we volition employ to reach this depends on the graphics software we want to utilise.

Photoshop & Prune Studio Paint

First, nosotros'll adjust the colour using an adjustment layer (Tonal Correction layer).

● Brightness/Contrast

Utilize Brightness/Contrast to brighten the overall image.

In Photoshop:

Layer menu > New Adjustment Layer > Brightness/Dissimilarity

In Clip Studio Paint:

Layer menu > New Correction Layer > Effulgence/Contrast

From the displayed card, utilise the Brightness slider to brand the newspaper background as white every bit possible without losing as well much line fine art particular.

● Level Correction

Next, use Level Correction to make the lines more than distinct.

In Photoshop:

Layer card > New Adjustment Layer > Levels

In Clip Studio Paint:

Layer menu > New Correction Layer > Level Correction

From the displayed bill of fare, operate the triangle nodes at the bottom of the graph past dragging them right or left equally needed. This allows you to whiten the color and shadows of the paper, as well as thicken and darken the line work.

Once complete, the adjustments will be created in the form of an adjustment layer (Tonal Correction layer). If you aren't quite satisfied with the results, double click the adjustment layer icon to display the menu once more and readjust your settings.

Lastly, select the Layer menu > Flatten image and the line art layer volition merge with the adjustment layer (Tonal Correction layer).

Just in case, I recommend saving your file once before merging.

Adjusting the Image Color: Pigment Tool SAI

For SAI, select and set the Filter menu > Brightness/Dissimilarity settings.

In the Effulgence and Dissimilarity dialog, adapt the Brightness slider and then that the newspaper appears white. Make sure that thin lines do not disappear or become too thin while adjusting. Once satisfied, click OK.

Select the [Filter] carte > [Brightness/Dissimilarity] again.

This fourth dimension, arrange the [Contrast] and [Brightness] sliders to darken the lines. Take intendance that lines don't become too thick or extend past your original line work.

Completing the colour adjustments

Compared to the original image, we have created much nicer looking line art, dark lines on a white groundwork.

In order to make the coloring step go more than hands, we will "extract" the line work by transforming the white background into a transparent background.

Extracting Line Fine art: Prune Studio Pigment & SAI

We will plow the white transparent by using "convert brightness to opacity." Select the post-obit commands to exercise this.

Clip Studio Pigment:

Edit menu > Convert effulgence to opacity

SAI:

Layer menu > Luminance to Transparency

With this, the line art has been extracted!

Notation:
After using Clip Studio Paint'due south Convert brightness to opacity, a transparent checkered pattern volition appear.
Select the Layer menu > New Layer > Paper to create a new paper layer over the transparent pattern.