Modifying colors with Photoshop
Go on the Internet and find a photo (at least 400 pixels wide or high) on which you will do the following exercise. The photo must be of nature, with many colors in it the activity will be difficult on a photo with too much of one thing (e.g. snow, ocean, desert etc.)
Start Photoshop, and paste the photo as new image. Resize it, so that the longer side is 400 pixels.
Duplicate the layer, so that you still have your original as background.
Start a new PowerPoint presentation, write your name on the first slide and paste on it your image.
Now go back on internet, on the site http://www.thetech.org/exhibits/online/color/attributes/
Follow the tutorial, but each time you learn something new and you do it in the tutorial, switch to Photoshop and do it also on your image. Always start from the original image.
- First change only the Hue. In the next slide in Powerpoint paste at least 3 different copies of the image with the Hue changed, and write next to each the Hue value. Copy the definition of Hue on the slide.
- Repeat on the next two slides changing the Saturation and Brightness one at the time (and copy the definitions)
- Then change the three together, and paste 3 trials on the next slide, always remembering to start form the original image, and to write the values that you have changed.
Once finished the tutorial, practice with the various filters and effects available in Photoshop.
Paste at least 3 modified copies of the image, writing specifically how you did it. Using any of the filters or effects you have discovered.
Now try to reproduce the following settings, and paste them (two per slide) with the description on how you did it.
Do at least 5 of the effects:
- Sepia
- Sunset
- Stormy day
- Night of full moon.
- Snow (you must select a specific part of the image and apply an effect only on that part)
- Cartoon style drawing
- Mosaic
- Artist’s rendering, black and white
- Art painting (colored)
- Dark, with a beam of light as from a lamp or a projector.