Build Summary Image
Clicking a button labelled Build
at the right side of main window, or selecting an item
Build Image from
File menu,
a summary image is built following the parameters
set up by the controls at the upper left part of main window.
A summary image is made of a number of frames extracted from
the video track of the object movie.
Parameters
There are some parameters as follows.
- Grid specifies the numbers of columns and rows.
The popup menu button at the right side allows you to choose the direction of
frame arrangement, downward from top left or upward from bottom left.
- Cell Size specifies the size of each cell by the number of
pixels for width and height. When one of width and height is specified, the other one
is automatically calculated according to the ratio between width and height of video frame.
- Cell Scale specifies the shrinking ratio for each frame
on the built image against the video frame.
- Spacing specifies the number of pixels between the frame images
on the built image.
- Caption can be superimposed for each frame as sequence numbers
or time code. The point size of text font can also be specified.
This is the size before shrinking by the above parameter.
When one of the three parameters; width and height of cell size, and cell scale,
is specified, the other two parameters are automatically calculated.
When the frame size of newly loaded movie is different from old one,
the height of cell size is fixed and the others are adjusted if needed.
Extraction
You can select the way to determine the interval for extracting frame images
from three alternatives, Spanning, Stepwise
and Interval.
The pop-up menu button at the right side of main window allows you to do this operation.
Spanning
In Spanning mode, frame images are extracted from the video track
from beginning to ending in even time span.
If the movie has a selected duration, frames are extracted from
the selected part. You can select any part of the movie by dragging
the indicator of movie controller while keeping a shift-key pressed.
The selection is cancelled when you click anywhere in the slider
again.
Stepwise
Consecutive frames are extracted stepwise until the number reaches
the total number of cells in the grid.
The starting point of extraction is the frame shown in the movie window.
Interval
When you select Interval item from the pop-up button,
a text field to set up the interval duration appears at the left side of the pop-up button.
You can set it by seconds with 1/100 second in the minimum unit.
Then, the system extracts frame images in this interval.