Channel Masking in Photoshop
October 30, 2013 § Leave a comment
Thinking & Practice Tutorial 28/10/13
In this session we were shown how channels in Photoshop can be used to layer images upon background images. We used an image of a model and the aim was to accurately cut it out using these tools. We initially found the channel with the most contrast between white background and black hair. We chose not to work directly on the channel because then it would be destructive to the image. Instead we duplicated the layer and renamed it as mask.
We then went to Image > Adjustments > Levels (rather than going to Brightness/Contrast we did it manually to target specific areas of the image. We used the levels to change all shades of grey within the image into black.
We then blacked out the silhouette with the paintbrush leaving out gaps in the hair and shoulders. With these parts we switched the brush to overlay and brushed over these parts so it would pick up the finer parts of the image. Then by creating a mask and inverting the selection we were able to accurately place the image onto the background.