The backlight processing tool can simulate blue film. The feature is available when color monitors are used and the Image Backlight color setting for the image’s modality type is set to anything other than grey. When applied, all image frames in the viewer apply backlight processing. By default, the feature is enabled for CR, DR, and mammography objects plus secondary capture. Some non-conformant DICOM modality values also default to enabled, such as RG and OT.
To configure backlight processing tool for one or more modalities, do the following:
Open the Customize Settings panel and select the Colors tab.
From the Modality list, select the modality whose images you want to use backlight processing. If you want to enable it for all modalities, select Default.
Select Image Backlight from the list of configurable settings.
Click the Change Color button and select a color setting other than grey. For blue film simulation, select a dark blue color.
Click OK to save the setting.
To disable the backlight processing tool for one or more modalities, repeat the process above and in step 4, set the color to true grey, meaning the red, green and blue values are all equal to 128.
When the tool is available, toggle the backlight simulation as follows:
Click the Backlight Processing button in the toolbox toolbar, or select Backlight Processing from the Tools menu.
When using greyscale monitors or when displaying an image whose modality setting has backlight processing disabled, the backlight processing tool has no effect on the rendered image.