Elect Imaging 2Color Correctn
Elect Imaging 2Color Correctn VC 251
Chemeketa Community College
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This 1 page Class Notes was uploaded by Dashawn Anderson DDS on Monday October 5, 2015. The Class Notes belongs to VC 251 at Chemeketa Community College taught by Peter Hoelter in Fall. Since its upload, it has received 23 views. For similar materials see /class/219428/vc-251-chemeketa-community-college in Visual Arts at Chemeketa Community College.
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Date Created: 10/05/15
VC 251 Week 02 1 of 1 07 October 2008 week Working with Color RGB Color Numbers Explained 0 Values are between 0 and 255 o 255 255 255 is white 0 0 0 is black 0 Color numbers that are the same are neutral colors 105 105 105 o 0 0 255 is Blue 255 255 0 is Yellow Blue s opposing color Info Palette 0 Displays numerical data about color 0 Use of this palette is critical when performing color corrections Eyedropper Tool 1 o Selects a color and makes it the current foreground color 0 Options Point Sample 3x3 Average the preferred setting 5x5 Average 0 Color Sampler Tool Shift I Creates static color sample points in your document The Info palette continuously displays the color values of all sample points Can also be created by Shift clicking with the Eyedropper tool They can also be created while in the Curves dialog box Color Correction by Numbers Overview 0 Using Curves the Eyedropper and the Info palette you can make accurate color adjustments to an image 0 It39s best to first make color changes globally if possible A color error in one part of the image often indicates problems with other parts The Target Values 0 The Highlight area should be R 250 G 250 B 250 o The Shadow area should range between R 15 G 15 B 15 For the Shadow values above and below 15 can be OK 0 Neutral areas should all be nearly equal in value 0 In general skin tones should push towards warmer hues reds yellows not cooler ones blues cyan For example in CMYK for Caucasian skin Magenta and Yellow should be about equal and Cyan V3 to 1s of the M amp Y values Hints from Dan Margulis o The steeper the curve the more the contrast Making a curve steep in an area of interest brings out the detail in that area 0 Use the full range of available tones every time and don t give viewers any colors that they will know better than to believe 0 One set of Curves is generally all that is needed 0 Curves should be your first and perhaps only color correction tool Demonstration Outline
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