I'm gonna use this image:
In this picture, there's a black taxi that is giving me an eye sore. So, I'm going to remove the taxi from this image. In order to do this, I'm going to use Clone Stamp Tool which is the ninth tool of the menu at the left.
Once you click the Clone Stamp Tool, press ALT and left button on your mouse together and rub the blue area of the image. After that, hold the left button on the mouse and rub the taxi and you will get this:
This image looked plain after removing the taxi out of the image. So, I'm going to add a ''MMU's Mascot'' image which is from the previous tutorials.
Now, I'm going to enhance the image by using the Hue/Saturation.
Remember about to switch layers when you want to use Hue/Saturation. You can enhance the image with other ways. You can see it from Image--> Adjustments.
So there you have it peeps. Stay tune for more tutorials =)