Tuesday, September 25, 2012

The Key to Successful Chroma Key photography

 The Green screen technique has become the backbone of the entertainment industry, as an increasing number of producers are opting this for saving their production cost. This cutting-edge technique has allowed people to make amazing videos without breaking their bank or going out for an on-location shoot. Being simple, Chroma keying is no more limited to the big names of the industry. Even the professional photographers and videographers are buying green screen kits to impress their clients with stunning photographs having unbelievable backgrounds. However, if you miss the finer points while Chroma keying; you have to face a lot of keying headaches.
If you don’t want to sit for hours in front of the composting program, make sure you light the background as evenly as possible with no hot spots. Although most green screen software that comes with your green screen photography kit, has the required tools for correcting these flaws but the process is very much time-consuming. Therefore, keeping the background as uniformly lit as possible will make your post-production work much easier.
Never make your subject stand near to your green screen kit, especially the backdrop. The closer your subject, the more will be the color spills. Getting rid of these spills can be a nightmare for you and therefore, maintaining a healthy distance is advisable while shooting. The recommended distance between the subject and your backdrop is 6 to 10 feet.
The new background that you choose for your picture must have the same brightness and tone as that your picture. If the color contrast mismatches, your picture will not look natural. You can adjust the contrast during the post-production process but the extent of change that you can make it very limited. Therefore, you must try to match your background before Chroma keying.
Always adjust your camera settings to shoot at a higher resolution. This is because, the greater the resolution, the more will be the data available for the keyer to work with. Key at higher resolution and then, shrink the image to your requirements. This way you will be able to get more accuracy.
Just replacing the background is not sufficient; you need to make sure that the work is done accurately so that the final output seems real and not Chroma keyed.

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