graphics&design correction and adjustment - creative: colour & tone, dust & marks, sharp...
Post on 19-Dec-2015
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![Page 1: Graphics&Design Correction and Adjustment - Creative: colour & tone, dust & marks, sharp Tech: Gamma, Histograms, & Convolution](https://reader030.vdocument.in/reader030/viewer/2022033100/56649d3b5503460f94a15c63/html5/thumbnails/1.jpg)
Graphics&DesignCorrection and Adjustment - Creative: colour & tone, dust & marks, sharpTech: Gamma, Histograms, & Convolution
![Page 2: Graphics&Design Correction and Adjustment - Creative: colour & tone, dust & marks, sharp Tech: Gamma, Histograms, & Convolution](https://reader030.vdocument.in/reader030/viewer/2022033100/56649d3b5503460f94a15c63/html5/thumbnails/2.jpg)
Graphics&Design
colour & contrast
• levels• curves• hue & saturation• channel mixer
![Page 3: Graphics&Design Correction and Adjustment - Creative: colour & tone, dust & marks, sharp Tech: Gamma, Histograms, & Convolution](https://reader030.vdocument.in/reader030/viewer/2022033100/56649d3b5503460f94a15c63/html5/thumbnails/3.jpg)
Graphics&Design
gamma curves
Equivalent to Brightness & Contrast
‘brightness’ - loss of highlight detail
‘darken’ - loss of shadow detail
‘increased contrast’ - loss of both
![Page 4: Graphics&Design Correction and Adjustment - Creative: colour & tone, dust & marks, sharp Tech: Gamma, Histograms, & Convolution](https://reader030.vdocument.in/reader030/viewer/2022033100/56649d3b5503460f94a15c63/html5/thumbnails/4.jpg)
Graphics&Design
gamma curves & levels
Improved using Curves
‘brightness’ - loss of highlight detail
‘gamma curve’ - retains shadow & highlight detail
Levels histogram - sample with ‘eyedroppers
![Page 5: Graphics&Design Correction and Adjustment - Creative: colour & tone, dust & marks, sharp Tech: Gamma, Histograms, & Convolution](https://reader030.vdocument.in/reader030/viewer/2022033100/56649d3b5503460f94a15c63/html5/thumbnails/5.jpg)
Graphics&Design
dust & scratches
Original
‘Old Image’
damaged with scratches and other age marks
Partial restoration with Dust & Scratches filter. Some loss of definition - (note blurred tie.)
Complete restoration with ‘Heal’ brush. A similar effect could be obtained from the Stamp tool
![Page 6: Graphics&Design Correction and Adjustment - Creative: colour & tone, dust & marks, sharp Tech: Gamma, Histograms, & Convolution](https://reader030.vdocument.in/reader030/viewer/2022033100/56649d3b5503460f94a15c63/html5/thumbnails/6.jpg)
Graphics&Design
Technical - Unsharp Mask
Unsharp mask - masks the ‘unsharp’ bits
• uses a ‘convolution’ filter to detect edges
•Uses the edges to make mask
•Increases contrast in masked area
Original Convolution Unsharp masking Custom filter