Crop Tool Mastery: Paint 3D's Background Removal

how to crop image in paint 3d without background

Cropping an image is a basic necessity when editing a picture, and while we usually crop in square or rectangular shapes, sometimes we want our image to be in a different shape, such as a circle. While Microsoft Paint 3D does not allow users to crop a circular image with just a click, there are workarounds. This introduction will explain how to crop an image in Paint 3D on Windows 10 and how to crop an image into a circle.

Characteristics Values
Software Paint 3D
Operating System Windows 10
Image Format PNG
Process Open Paint 3D and create a new document
Insert image
Use Magic Select tool to remove background
Drag corners or sides of the box to crop out the background
Click Next
Use Add and Remove buttons to make adjustments
Save as a sticker (optional)

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Using the Magic Select tool

The Magic Select tool in Paint 3D allows users to resize, reshape, remove and modify objects in a photo. It can be used to crop an image without the background.

To use the Magic Select tool, first, open the image file in Paint 3D. Next, use the 2D shapes function to draw a circle around the target object. Ensure that the 'Fill' is set to 'None' and the 'Line type' is 'Solid' with sufficient thickness. After drawing the circle, use the Magic Select tool to remove the background outside the circle and make it transparent. The software will automatically detect the edge of the object and crop away everything else.

It is important to note that the Magic Select tool works best with well-defined, well-lit simple objects. It may struggle with complex images that have many small details to add or remove.

Once all the necessary adjustments are made, click 'Done'. The circle-cropped image will be generated. To make the background transparent, choose the 'Canvas' function and set the 'Transparent canvas' toggle switch to 'On'.

The Magic Select tool is a convenient way to crop images in Paint 3D, allowing users to easily remove backgrounds and make adjustments as needed.

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Drawing a circle around the desired object

Drawing a circle around the object you want to crop in Paint 3D is a simple process. First, open the image file in Paint 3D. Then, use the 2D shapes function to draw a circle around the target. Make sure that the Fill is set to None and the Line type is Solid, with a thickness that suits your image (a thickness of 50px is a good starting point).

When drawing the circle, hold ⇧ Shift while clicking and dragging. The more you drag, the bigger the circle will be. Release the mouse button first, then release ⇧ Shift. If you release ⇧ Shift first, the circle may become an oval.

Once the circle is in place, you can crop the image using a 1:1 aspect ratio, up to the outer edge of the circle. Then, use the Brushes function and choose the Eraser tool to wipe out everything outside the circle. Make sure the Eraser thickness is suitable for the image—too thick and you might accidentally erase the image; too thin and it will take a long time to finish erasing.

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Erasing outside the circle

To crop an image in the shape of a circle in Paint 3D, you must first open the image in the application. Then, use the 2D shapes function to draw a circle around the target. Make sure that the Fill is set to None, the Line type is Solid, and the Line type colour is white. Adjust the thickness of the circle using the right sidebar—for best results, it is recommended to keep it at 100px.

Once the circle is in place, everything outside of it must be erased. To make this step easier, start by cropping the image using a 1:1 aspect ratio, up to the outer edge of the circle. Then, use the Brushes function and choose the Eraser tool with sufficient thickness. Wipe out everything outside the circle, being careful not to accidentally erase the image itself.

After clearing everything outside the circle, you should be left with the targeted object and a white background. To crop the image down to the object boundary, choose the Magic Select function and click Next. The software will automatically detect the edge of the object and crop away everything else. Finally, click Done, and your circle-cropped image will be generated.

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Making the background transparent

To make the background of an image transparent in Paint 3D, you must first open the image in the application. Then, click on "Canvas" and enable "Transparent Canvas".

Next, you will need to select the foreground of the image. This can be done by using the Magic Select tool, which automatically detects the objects in the image and allows you to adjust the highlighted area around the object you want to keep. After selecting the foreground, click "Next", and then use the Add and Remove functions to further adjust the image cutout as needed. Once you are satisfied, click "Done".

Now, you can remove the cutout from the canvas and highlight the remaining background with the "Select" tool. Press "Delete" to erase the background.

Finally, move the foreground object back onto the transparent canvas. Save your image in a format that supports transparency, such as PNG or GIF, and ensure that the Transparency box is checked.

Additionally, if you want to circle-crop an image, you can use the 2D shapes function to draw a circle around the target object. After drawing the circle, use the Magic Select function to remove the background outside the circle and make it transparent.

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Saving in the right format

Once you are done cropping the image, you can save it in the desired format. To do this, follow the below steps:

Firstly, ensure that the Save as type dropdown has the desired format selected. For example, if you want to save the image in PNG format, select 'PNG (image)' from the dropdown.

If you want to retain the transparency of the background, ensure that the Transparency checkbox is ticked. The grey-and-white checkered background indicates that the background is transparent. If you uncheck the Transparency box or choose JPEG format, the background will turn white, indicating that it is no longer transparent.

You can also save the image in GIF or BMP format, as Paint 3D supports these formats.

Additionally, if you want to save an HDR image, you can import a raster image like a JPG or PNG file into 3D Builder (available for free on Windows) and convert it to a 3D file. You can then save the file in various 3D formats such as STL or 3MF.

By following these steps, you can save your cropped image in the desired format while retaining any transparency effects you may want to keep.

Frequently asked questions

To open an image in Paint 3D, type 'Paint 3D' in the search section of your taskbar and click on the search results. Click on the 'New' icon and then click on the folder icon in the upper left corner to insert your chosen image.

To crop an image, drag the corners or sides of the image until your desired section is selected. Click 'Next' and the background will be removed.

First, crop the image using a 1:1 aspect ratio up to the outer edge of the desired circle. Then, use the ''Brushes' function and select the 'Eraser' tool to erase everything outside of the circle.

To make the background transparent, use the ''Magic Select' tool. If there are any white remnants, use the ''Brushes' function and the ''Eraser' tool to remove them.

Save your image as a PNG file to retain its transparency.

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