HW1. Relighting (20.02, 23:59)
Reporting is important, let's practice to make your homework attractive:
EX1.(4p) Take some photos of your choice that meet the requirements listed below: Each photograph should meet at least one of the requirements below, and you should make sure to cover every requirement with at least one photo. You should upload at least five photographs for the assignment. While a photo can fulfill more than one requirement, you will need to select exactly one requirement for each photo, that will be usedto grade.
Requirement 1: At least one photo must be poorly exposed. Example most of the photo image should be either very close to black (underexposed) or close to flat white due to oversaturation (overexposed).
Requirement 2: The main subject of at least one photograph should be motion-blurred, either due to movement of the subject or movement of the camera.
Requirement 3: In at least one photo, nothing at all should be in focus. -be creative!
Requirement 4: You should use the wrong white balance setting for some intentional effect in at least one photo. The white balance setting on a camera tells the camera what color it should expect the scene illumination to be, for example daylight (which is bluish) or indoor incandescent (which is reddish). Most cameras have an "auto white balance (AWB)" setting, and manual settings for these other illumination types.
Requirement 5: At least one photo should be poorly composed. You may want to consider an exactly centered subject that produces an oddly symmetric photo, a confusion between the subject and a background object, or a horizon that isn't level.
EX2. (4p) Take two photos and combine them by mixing the color channels. Then take multiple photos by varying lighting and other parameters. Try be creative. Then mix and match color channels to relight.
You are free to use these referrences:
Synthetic Lighting for Photography. January, 1992. http://www.graficaobscura.com/synth/index.html
Image Fusion for Context Enhancement and Video Surrealism. https://web.media.mit.edu/~raskar/NPAR04/
MATLAB resources:
Sigmon, Kermit. MATLAB Primer. 2nd ed., 1992. https://mathweb.ucsd.edu/~bdriver/21d-s99/matlab-primer.html
The MathWorks. Image Processing Toolbox. https://www.mathworks.com/products/image.html