The Clip panel is shown when the base clip is selected.
The Defect Map section specifies whether the clip has defect map information present in its alpha channel. If the clip does not have an alpha channel then this control will not be available.
If your clip
has defect map information stored in the alpha channel, it is very
important to change the Defect Map setting to either White α (3) or Black α (4), depending on whether defective pixels are stored as
alpha= 0 (black) or
alpha= 1 (white) in the clip.
Often, the alpha values stored in the defect map will not be entirely black or white, but a range of grey levels. The Defect Threshold (1) specifies the grey-level value above or below which pixels are classified as defects, and can be adjusted from zero to one. The default value is 0.5.
The View (2) button on the right can be used to display a coloured overlay showing which pixels are classified as defects and which are not. The preview overlay will be generated each time the defect threshold is changed, and can be used to ensure the threshold is set at a suitable level to identify defects for the clip.
The Offset X and Offset Y sliders (5) can be used to shift the defect map horizontally and vertically, if the alpha channel defect map is not perfectly registered with the image data.
The Dilate X and Dilate Y sliders (6) can be used to expand defect map areas horizontally and vertically, if defect map pixels do not fully cover defect areas in the image data.
The User-Attributes section allows the user to tag a clip with a certain attribute. This attribute is not used by PFClean itself, it merely acts as an aid to the user.
PFClean has the following default set of user-attributes to reflect the status of a clip: Draft, In progress, In review and Approved. However, this default set of attributes can be extended and modified by the user to suit any particular workflow.
A default attribute can be assigned and clips of a certain attribute displayed in a specified colour in the Media Bins in order to make them stand out.
Further notes can be added to each status using the text editor.
The Clip Info section displays information (1) about the clip and its file(s). This section is read-only, and clip properties cannot directly edited.
The Media Admin button (2) provides a shortcut to the clip's entry in the Media Admin, where some properties of the clip can be edited.
Please note: Editing a clip's property may invalid the current effects stack, and result in the removal of existing effects stack snapshots.