Zoom (magnify) video and images
A size of static images or frames displayed during a real time playback of video streams can be changed using "Zoom (magnify)" operations.
Zooming is a specific type of general 2-dimensional transformation (2D Transform) of image. It is frequently used together with the "Rotate and Reflect" 2D transform operations.
Zooming can be initiated using the following user interface elements:
- Main menu of Breeze
- Pop-up menu of video pane
- Zoom toolbar
- Shortcut keys, Ctrl + "+" (Plus) and Ctrl + "-" (Minus) keys
- Mouse wheel with the Ctrl button pressed (Ctrl + Mouse)
- "Zoom (magnify)" dialog
Major types of zoom operations and zoom modes are shown in the Table 1.
| Operation | Zoom mode | User access |
|---|---|---|
| Zoom in / Zoom out | Zoom to size |
Menu Zoom toolbar Ctrl + "+" and Ctrl + "-" keys Ctrl + Mouse wheel |
| Zoom to size | Zoom to size | Menu |
| Keep in view | Keep in view | Menu |
| Fit view | Fit view | Menu |
| Fit width | Fit width | Menu |
| Fit height | Fit height | Menu |
| Fill view | Fill view | Menu |
| Custom zoom | Custom zoom | Menu, "Zoom" dialog |
Zoom in / Zoom out
Increase (zoom in) or decrease (zoom out) size of image in video pane(s).Size of non-zoomed image corresponds to the zoom value 100% ( 1x magnification ). Maximum size of a zoomed image is 1000% ( 10x ) of non-zoomed image size, and minimum size is 10% ( 0.1x ).
These operations can be initiated via the main menu, pop-up menu of video pane, "Zoom" toolbar, shortcut keys and mouse wheel. Plus ("+") and Minus ("-") keys from numeric keypad and from the top row of central keyboard section can be used.
Zoom to size
These operations set the fixed values of image size in video pane(s).The full set of fixed zoom levels are the following: 1000%, 500%, 200%, 175%, 150%, 125%, 100%, 50%, 25%, 10%.
Size of non-zoomed image corresponds to the zoom value 100% ( 1x magnification ). Maximum size of a zoomed image is 1000% ( 10x ) of non-zoomed image size, and minimum size is 10% ( 0.1x ).
Keep in view
This operations adjusts the size of image in video pane automatically. If width and height of non-zoomed ( 1x ) image is equal or less than the width or height of video pane then image is kept non-zoomed. Otherwise, an image size is adjusted to fit entirely within the borders of video pane, similar to the "Fit view" operation.If more than one video pane is open then their sizes can be changed by repositioning a horizontal and/or vertical bar(s) separating these video panes. If "Keep in view" zoom mode is set then a change of video pane's size may lead to the change of image size according to the rules defined for this operation.
Fit view
This operations adjusts the size of image in video pane automatically, so it fits entirely within the borders of video pane.If more than one video pane is open then their sizes can be changed by repositioning a horizontal and/or vertical bar(s) separating these video panes. If "Fit view" zoom mode is set then a change of video pane's size leads to the change of image size.
Fit width
This operations adjusts the size of image in video pane automatically, so it fits the width of video pane.If more than one video pane is open then their sizes can be changed by repositioning a horizontal and/or vertical bar(s) separating these video panes. If "Fit width" zoom mode is set then a change of video pane's size leads to the change of image size.
Fit height
This operations adjusts the size of image in video pane automatically, so it fits the height of video pane.If more than one video pane is open then their sizes can be changed by repositioning a horizontal and/or vertical bar(s) separating these video panes. If "Fit height" zoom mode is set then a change of video pane's size leads to the change of image size.
Fill view
This operations adjusts the size of image in video pane automatically, so it fills the entire video pane.If more than one video pane is open then their sizes can be changed by repositioning a horizontal and/or vertical bar(s) separating these video panes. If "Fill view" zoom mode is set then a change of video pane's size leads to the change of image size.