Black and white photography may be regarded as abstract photography as the image is not a true representarion of the original scene. A good black and white image will be expected to contain the full range of tones from complete black to complete white. There are two methods of getting a black and white image. Firstly through the process of capturing the image in camera from a black and white film, this method has proven itself over many years of development. Secondly an image can be captured digitally and then processed to discard all the color information.
Capturing color is all about making color predominate in the image. Colors in an image can be closely related to give the image harmony, or the colors may contrast to make the image stand out. It is common for a splash of red in an image to make the whole image stand out. Some colors will give a warm feeling (orange and yellow), others will give a cool and calming feeling (green, blue and violet) and other may give us a hot feeling (red).