The Develop Phase prepares the image for processing. If necessary, you can brighten, darken, white balance, and crop the image before moving to the Factor Phase. These capabilities can help you convert a camera’s raw digital image into an effective and usable product. Cropping an image to the important areas speeds up processing and minimizes user interaction. White balance and scaling affect primarily the perceived image quality, not the underlying image processing behavior. Select a white balance and scale factor to make the image visually appealing.
When you finish with the develop operations, select Develop (⌘D) from the Image menu to proceed.
The tool palette contains an icon for each tool available in the current phase. Clicking on an icon makes it the active tool.
In the Develop Phase, the zoom, pan, scale and white balance, crop, and chromatic aberration tools let you manipulate the image to be processed.
Many tools have options to control their behavior and graphics that provide feedback.
You can crop, rotate, and scale the image using either the mouse or the Tool Options panel, which provides explicit control of the orientation, crop size, and final image size.
Lightbrush uses a custom chromatic aberration correction process
to reduce visual color artifacts caused by lens imperfections.
Leave this option checked to optimize the quality of your results. You can uncheck this option if the image has already been through a chromatic aberration correction process, but there is no harm in leaving it on and running the process again.
You can white balance the image manually using the sliders or eyedropper tool, execute an automatic white balancing using the Auto button, or reset the white balance to the camera’s original settings.
The scale slider allows you to brighten or darken the whole image. The statistics at the bottom display the image properties.