Gimp

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Gimp is an open source photo editor, similar to the commercial program Photoshop. You can use Gimp for editing images (pixels).

Example of what you can do is: cutting and re-sizing format of file like scaling down to web quality. Adjusting the contrast of the image, so you have a better result with laser cutting. Making an drawing by hand using various brushes and textures of the program.

To download Gimp, visit: http://www.gimp.org

Tutorials

• Official Gimp documentation

Important basics

• YouTube video introduction (scaling, cropping. cutting - with transparency, flipping) : https://www.youtube.com/watch?v=i9up3Je0hyc

• selecting : YouTube:https://www.youtube.com/watch?v=AX9g_4UrdB8
• transforming : YouTube:https://www.youtube.com/watch?v=7y92bDSDy_A
• brush tool : YouTube:https://www.youtube.com/watch?v=VKklwkKh_sM
• color tool : YouTube:https://www.youtube.com/watch?v=e1w1Sq_PETg
• saving as jpg : YouTube:https://www.youtube.com/watch?v=qqG0P1oT_OM

Advanced basics

• layers : YouTube:https://www.youtube.com/watch?v=jrVnI3l9fgE
• contrast : YouTube:https://www.youtube.com/watch?v=ZBjp4_y8Syo
• path tool : YouTube:https://www.youtube.com/watch?v=fJE70PyYu2k
• creating white background : YouTube:https://www.youtube.com/watch?v=UfATXRelXpg
• cropping : YouTube:https://www.youtube.com/watch?v=eqeEVzw4kuQ

How to make ...

outlines for laser rastering

• Filters -> Artistic -> Cartoon
• Filters -> Artistic -> Softglow
• Filters -> Artistic -> Cartoon

change image like it was drawn

• Filters-> Decor -> Old Photo -> OK
• Colors -> Invert
• Filters -> Edge Dectect -> Edge
• Colors -> Invert
• Colors -> Brightness & contrast