All images uploaded to MorphoBank are automatically converted into a format that allows efficient pan-and-zoom viewing at full resolution. This means you can upload very high resolution imagery and view it online on MorphoBank with full detail using a normal internet connection.
To efficiently display high resolution imagery, MorphoBank takes your original image, breaks it up into small pieces and stores those pieces at various resolutions, from full resolution down to thumbnail resolution. Special browser-based software built into MorphoBank requests only those pieces that are actually visible on the screen, and at lowest the resolution possible. The result is that even the highest resolution imagery can be viewed online using a standard connection. No detail need be lost.
The image viewer also incorporates image labeling features that are described in detail later on in this chapter.
The only requirement to use this feature is that your browser have the Adobe Flash version 8 or better plugin installed. Most modern browsers and operating systems come with this software pre-installed. As of May 2007 more than 96% of users have it.
When you open an image in the viewer, either in the
Labels tab of the media editor or in a matrix, the
viewer will look something like the figure below.
The palette shown in the upper-left hand corner of the Figure 10.7, “Basic image viewer” and in detail in Figure 10.8, “Image viewer tool palette” contains all of the tools to navigate the image and operate the viewer.
To zoom in on an image select the zoom-in tool from the tool bar (or press the '+' key on your keyboard), then click and hold the button on the area that you wish to enlarge. For fine adjustments, pressing the ']' key on your keyword will increase the magnification of the image by 1%.
To zoom out on an image select the zoom-out tool from the tool bar (or press the '-' key on your keyboard), then click and hold the button on the area that you wish to keep in view as the image is reduced. For fine adjustments, pressing the '[' key on your keyword will decrease the magnification of the image by 1%.
To move around an image that is too large to fit on the screen select the pan tool from the tool bar (or press the 'p' key on your keyboard), then click on the image, hold the button and drag the mouse until the region of interest is visible. For fine adjustments, pressing an arrow key will move the image in 1 pixel increments.
Clicking on the fit-to-screen button will automatically resize the image to fit on the screen and center it.
Clicking on the View at 100% button will automatically resize the image to display on screen pixel for pixel at its full resolution.
The Navigator window displays a small version of the image with the portion visible on screen highlighted. You can click and drag on the highlighted area to move around the image, or simply click on the area you wish to view and the viewer will scroll there. To activate the Navigator window, click on the triangle on the right hand side of the tool bar, then select "Navigator" from the menu that appears, or press the 'n' key on your keyword to show or hide the window.
You can hide all of the viewer's on-screen controls, allowing one to view the image in an uncluttered window, by pressing the TAB key on your keyword. Once hidden, pressing TAB again will make the controls reappear. All mouse and keyboard controls continue to work normally while the on-screen controls are hidden.