You may remember this gentleman from a photo I posted around a year ago (it’s pure coincidence I’m posting this today! Really!)
This was shot in Midleton, Co. Cork during the Food and Drink Festival in 2006. Nice guy who came over for a chat afterwards.
| Aperture | ƒ/11 |
| Camera | Canon EOS 20D |
| Focal length | 200mm |
| ISO | 200 |
| Shutter speed | 1/500s |
Many people find using the GIMP or Photoshop a daunting prospect but in fact those packages are quite easy to use once you’ve practiced a few times. This will be the first in an occasional series to help photographers use the GIMP to post process their photos.
The Levels tool (right click on your image, select Colors, then Levels) is used to adjust the levels of the colours in your image by manipulating a histogram representing the image. In simple terms, you can make broad changes to the Red, Green, Blue and overall “Value” parts of your image.
The single most useful function of the Levels tool is the “Auto” button. Click that button and the histogram will be stretched out. Your image should look better. If the photo lacked contrast, it can suddenly become a lot “punchier”!
Here’s an example which will make things clearer.
This is a nice photo I took in Galway in 2005 with a Sony 717. Unfortunately, there’s a nasty yellowish sheen to the image. I probably shot this with the white balance set to cloudy. That can give a pleasing golden look to images but it’s not always welcome. The image also lacks contrast and looks under exposed. How do I fix that?
Fire up the GIMP Levels tool. Right click on the image, go to Colors, then Levels. This is the histogram for the image above. See how it’s all bunched into the middle? Now, click on the “Auto” button.
Wow! One click did that? The image looks so much better now! The swans actually look white and it’s brighter and shiny!
I opened the Levels tool again, just to see what effect “Auto” had on the histogram. Sure enough. It’s stretched from side to side.
Before and After Auto Levels
Wasn’t that easy?
Advanced Usage
You may have noticed the eyedropper buttons next to to the Auto button. Those are “Black”, “Grey” and “White” selectors. Click on one of those, your cursor will change to a eyedropper and then click on the corresponding colour in your image. They work pretty well, but can be confused. If it all goes wrong, just click the Reset button, or CTRL-z to undo if you’ve clicked OK.
You can also manipulate the histogram manually. Just drag the sliders left and right until your image looks ok. You can change the channel with the drop down at the top of the Levels dialog. Changing individual channels does interesting “cross processing” things to an image.
External links:
Want to know more? Leave a comment. I’d love to hear what you’d like to know and learn about the GIMP.
The hang gliding crowd attracted a bit of a crowd on Inch Beach in 2006. Well, it was late September and there wasn’t that many people on the beach in the first place, so 2 people isn’t so bad, eh?
Hunger got the best of us and we watched as a powered plane flew high up in the air. I don’t think any of the gliders made it up that day because the winds weren’t right.
| Aperture | ƒ/8 |
| Camera | Canon EOS 20D |
| Focal length | 10mm |
| ISO | 100 |
| Shutter speed | 1/800s |
In an emergency such as a fire you want to be able to escape from a building quickly and be assured that there’s plenty of water to fight the flames. I presume these capped pipes have something to do with that purpose?
| Aperture | ƒ/8 |
| Camera | Canon EOS 20D |
| Focal length | 10mm |
| ISO | 100 |
| Shutter speed | 1/400s |
Fishing boats crowd the harbour in Ballycotton on a warm August afternoon.
This was taken in 2006, when I think I shot the rest of my Ballycotton images. I love the imposing clouds and the leading lines of the bows.
| Aperture | ƒ/11 |
| Camera | Canon EOS 20D |
| Focal length | 10mm |
| ISO | 100 |
| Shutter speed | 1/250s |
A donkey, alone in his field. There’s a horse in the background but he’s being fed. The donkey doesn’t get anything. Poor thing.
Spotted on the road around Slea Head at the end of the Dingle Peninsula, Co. Kerry.
That’s the last of the donkey pictures. For now.
| Aperture | ƒ/11 |
| Camera | Canon EOS 20D |
| Focal length | 20mm |
| ISO | 100 |
| Shutter speed | 1/160s |
I photographed the beach at Couminole on the Dingle Peninsula back in 2006 when there was a beach there. There was no sand to be seen during repeated visits there in September 2007.
I had actually quite forgotten I had taken this so it was nice to see the lovely sandy beach!
Trivia – a well known member of Mallow Camera Club who shall remain nameless was caught by the tide and had to remain sitting on the rocks for several hours in wet, foggy and rough conditions until the tide went out again.
| Aperture | ƒ/10 |
| Camera | Canon EOS 20D |
| Focal length | 88mm |
| ISO | 100 |
| Shutter speed | 1/250s |
The donkey knows everything. He stands in his field every day contemplating life.
This is the same donkey I posted before in Baile na nGall, Co. Kerry. We passed that way last September and I didn’t see him so if you see a wandering donkey, tell him I said hi!
| Aperture | ƒ/4 |
| Camera | Canon EOS 20D |
| Focal length | 18mm |
| ISO | 100 |
| Shutter speed | 1/800s |
The sun had just set over this stretch of the water in Cork Harbour near Monkstown and the sky had turned a beautiful orange and purple and red and golden.
Much to the annoyance of my dog Oscar, I stopped and spent a good 10 minutes shooting this scene and basked in the beautiful colour.
| Aperture | ƒ/22 |
| Camera | Canon EOS 20D |
| Focal length | 10mm |
| ISO | 100 |
| Shutter speed | 10s |
The Nike Store, Niketown, on Union Square, San Francisco as seen in 2006.
| Aperture | ƒ/10 |
| Camera | Canon EOS 20D |
| Focal length | 10mm |
| ISO | 200 |
| Shutter speed | 1/200s |
San Francisco as seen from the hills surrounding the City. I took this back in August 2006.
Can you tell yet that I merged a few of my work directories after doing some house keeping work on my photo archive?
Thanks to Niall Kennedy for driving us up there!
| Aperture | ƒ/11 |
| Camera | Canon EOS 20D |
| Focal length | 10mm |
| ISO | 200 |
| Shutter speed | 1/250s |
This is one of the beautiful girls who modeled for Mallow Camera Club in September 2006. I can’t remember her name, and at the time I was totally unhappy with the image, but maybe it’s because I haven’t looked at it in a long time, I really like it now.
I shot several similar ones to this, but unfortunately many of them are under exposed. We had studio lighting but because several photographers would shoot at one time and their onboard flash would activate the studio lights so it was hit or miss whether you got a correct exposure or not.
Besides which, I was nervous as well, and didn’t know how to direct someone to pose for me!
| Aperture | ƒ/6.3 |
| Camera | Canon EOS 20D |
| Focal length | 200mm |
| ISO | 100 |
| Shutter speed | 1/250s |
