Image manipulation is the main phase for establishing a predetermined look in compositing. This stage mostly involves grading, merging, transforming, and resizing of the footage to achieve the desired look of the film. Blender Compositor is equipped with various tool nodes to perform these tasks.
The brightness of an image signifies the amount of light that is reflecting or radiating from it. Increasing or decreasing the brightness of a node proportionally changes the light reflection intensities of the input image as shown in following screenshot:
The contrast of an image signifies the luminance and/or color variation; in other words, the separation between the darkest and brightest areas of the image. Increasing the contrast emphasizes the distance between the dark and bright pixels in the image, thus making shadows darker and highlights brighter. This effect makes parts of the image pop up, making it a vibrant image. Decreasing the...