Generate a frame around the image.
The frame consists of a border (with a user-defined color) and a frame line within that border (with a second user-defined color). Various options are available to control the geometry and color of the frame.
- border size
- The size of the frame as a percentage of the underlying full image.
- The aspect ratio of the final module output (i.e. the underlying image plus the frame)
- The orientation of the frame (portrait/landscape). Select ‘auto’ for darktable to choose the most reasonable orientation based on the underlying image.
- horizontal/vertical position
- Select from a set of pre-defined ratios to control where the underlying image will be positioned on the horizontal/vertical axis. You can also right click and enter your own ratio as “x/y”.
- frame line size
- The percentage of the frame line size, relative to the border size at its smallest part.
- frame line offset
- The position of the frame line, relative to the underlying image. Choose 0% for a frame line that touches the image. Choose 100% for a frame line that touches the outer border.
- border color / frame line color
- A pair of color selectors which allow the border and frame line colors to be defined. Clicking on the colored field will open a color selector dialog which offers a choice of commonly-used colors, or allows you to define a color in RGB color space. You can also activate a color picker to take a color probe from the image.