I notice that most of my winter, aka “snow”, pictures have this dull gray color to them. For quick white balance correction in Gimp, open the image. Now from the menu on the Image, choose COLOR | AUTO | WHITE BALANCE
Gimp’s auto white balance has been pretty reliable to quickly set the correct tones in [...]

Once you start getting to work on a complex graphic, you’ll want to use layers. Here’s what I’ve found works best for me and seems to flow easily in GIMP. You can start with your own image, or download my classroom graphic here: classroom_small_zip.
To view the Layer’s dialog box, press CTRL-L or from the Dialog [...]

For an even easier way to crop images in GIMP, use the Selection Tool:
1) Click and drag a selection over the area that you want to remain as your image.
2) From the Image Menu, choose Crop To Selection
3)You now have a quickly cropped picture in GIMP!

Very often I find that my cell phone photos have a grey wash to them or they just look flat in color. So, I use the Levels adjustment tool in Gimp to fix them. There’s lots of discussion about what levels are and what they do, etc. but I tend to focus on the practical. [...]

I’m using the opensource Gimp to manipulate and edit my photos these days, and thought I’d put together a short tutorial on how to crop photos. I’m using version 2.4.7 but any 2* version should look the same as my screenshots. Follow the link above to get the latest Gimp download, just click on the [...]