画像透過アプリ

This app makes a portion of a selected image transparent.

It allows you to make any area transparent using fill, brush, circle, circle outside, and lasso-style tools.

There are also brush, circle, and lasso-style tools for restoring areas that have already been made transparent.

While we've tried to keep the app as lightweight as possible, it may become slow if you use a large brush size on a large image.

Also, saving may take some time as it reverts from the preview size back to the original image size.

All tools allow you to zoom in and out, but due to the way the brush tool is used and the possibility of malfunctions, image movement is handled by a dedicated tool.

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Explanation of each tool
Transparency tools: Fill, Brush, Circle, Circle Outside, Lasso-style
Restoration tools: Brush, Circle, Lasso-style
Other tools include Move, Undo, Redo, Image Selection, and Save on the toolbar.

Fill
This tool allows you to make consecutive similar colors transparent, starting from the touched position.
You can change the tolerance for similar colors by adjusting the threshold using the seek bar at the bottom of the screen.

Brush
This tool allows you to make the area you trace transparent.
You can change the size of the brush itself using the seek bar.

Circular Transparency
This tool makes a circular area transparent, centered on the touched position.
You can change the size of the circle using the seek bar.

Circular Transparency
This tool leaves a circular area of ​​the image transparent, centered on the touched position, and makes everything else transparent.
You can change the size of the circle using the seek bar.
In practice, only one area will be left transparent and everything else will be transparent.
If you want to leave multiple circular areas, make the entire area transparent and then restore them using the circular restoration tool.

Lasso
This tool allows you to draw any shape on the screen and make it transparent.
The area that will be made transparent is shown in red.

Restore Tool
This tool works the same way as the transparency tool, but it restores the image instead of making it transparent.

When the restoration tool is selected, transparent areas (those that have been made transparent since the image was selected) are displayed semi-transparently.

Other Functions
Move
Select the cross icon on the toolbar to move the image.

Back/Forward
Press the left/right icons on the toolbar to redo or forward.

Select
A selection screen for the image you want to make transparent will appear.

Save
You can save the image.