Make matte picture online
Select a picture on your computer or phone, specify the desired color shade and then click OK. Other settings already installed by default.
Examples of pictures with red, orange and blue matte shade, made on this website:
This online tool adds to the photo matte shade of a certain color. If you need a matte picture without color shade, then just select the white color (last in the settings).
The original image is not changed. You will get other processed image.