Gimp Primary Features

Sep 28th, 2016 - written by Kimserey with .

When working on personal projects, there’s one thing which use to always make me waste lot of time - art. Art in the sense of making logo, icon and other images like feature graphics or promotional images. Making something that looks “ok” is not as easy as it seems especially for people like me who have no sense of art whatsoever. Few weeks ago I completed Baskee and had to develop a feature graphic for it. Also my friend came up with the logo idea and I wanted to enhance it to make it more appealing. This sort of skills are always needed as it is hard to find people to do some art things for free. So might as well learn how to do it yourself by using the best free image editor - GIMP. GIMP has been there for a decade and it is a well established software so I decided to jump into it to enhance Baskee logo and create the feature graphic.

Here’s the evolution of Baskee logo from top to bottom (v1/v2/v3):

baskee

This post is a highlight of some features from GIMP:

Zoom / unzoom
Scales (Canvas, image and selection)
Autocrop
Select (rectangle, free, by color)
Guide

1. Zoom / unzoom

Starting by zooming. Probably what I do the most zoom and unzoom using the keyboard shortcut + and -.

Zoom icon zoom options

1.1 Usage

I zoom/unzoom to add precision in the selections.

2. Scales (Canvas, image and selection)

Scaling canvas would be used to expand the image drawing area so that you can fit more things.

Scale canvas 1 Scale canvas 2

Scaling the image would transform the width and height. It s very useful to downsize the image width and height.

Scale image 1 Scale image 2

Scaling selection same as scaling image except will scale the selection.

Scale selection 1

2.1 Usage

I use scaling to create icons of different size to fit different screen sizes of the app. I also use a lot the scaling of selection to construct images of multiple layers and properly size the images so that the overall picture looks alright.

3.Autocrop

Autocrop can be accessed from Image > Autocrop image. It will remove the transparent part and crop the image.

autocrop

3.1 Usage

I autocrop my images to remove the transparent part and have canvas precisely fit the image. Doing that allow me to evaluate how the image will fit in the display of the app otherwise if extra spaces is present on the image, it will be harder to center properly the image during the app development.

4. Select (rectangle, free, by color)

Selections are another awesome features. The selections I use most are rectangle selection, free selection selection by color.

Rectangle selection can be access from the icon:

rectangle selection

Free selection allows to draw a selection area. It can be accessed from the icon:

free selection

Lastely selection by color will select all pixels from the same color selected:

color selection

4.1 Usage

I primarly used the selections to cut or copy pieces of images but it is also useful to make a selection and fill up the selection with a Foreground color or Background color.

fill up

5. Guide

Another extremely useful feature is the guide. It can be created using create guide line to delimit areas in your image.

guide create guides

If you don’t see any guide it might be because the visibility isn’t enable. Enable it from the View menu.

enable guide

After that it’s possible to move the guides using the move tool and having the options Pick a layer or guide.

pick layer or guide

5.1 Usage

It can be used to center images. It can also be to guide placement or selections. I used it to make the border of my icon consistant by making selections guided by the guides and filling up with white color.

6. Measure

Lastely a very useful tool is the measurement tool. Click and drag to see the measurements.

measure icon

The tool measures the distance in pixels and the angle.

measure pixels angle

The measurement can also be moved around, hover over it and you will be able to drag it around the image.

6.1 Usage

This is very useful to measure line sizes for example to keep a consistant size across the logo. Also dragging the measurement around can be useful to measure multiple places.

Conclusion

Today we saw some useful features of GIMP. I use it quite a lot to do very simple modifications. It is a useful skill to have when you are a one man team without budget! Anyway if you have advices for me on GIMP or any questions leave it here or hit me on Twitter @Kimserey_Lam. See you next time!