Image Viewer

The Image Viewer can be invoked in three ways:

By clicking once on an image indicator bar on the tooth chart. This will show only those images for the tooth or teeth the bar is associated with.
If you hover your mouse cursor over the image indicator bar on the tooth chart, a preview 'tooltip' of the image is displayed.

If you right-click the image indicator bar, the image(s) will be displayed instead via the Cascade Viewer.
By clicking the Image Viewer button on the "Images" tab of the Chart window.
By double-clicking an image on the "Images" tab, (or right-clicking an image and selecting "Image Viewer" from the drop-down menu).

Both of the two previous options will display all images for the current patient.

Using the Image Viewer

Once invoked, the Image Viewer 'floats' on top of all other open windows until closed by clicking the button. Every time you invoke the Image Viewer, it will open another floating window in the same position as the last one displayed. If you haven't moved previous Image Viewer windows, they will stack up one on top of another.

You can also temporarily remove an Image Viewer window from the screen (minimise it) by clicking the 'Minimise' button:

Minimise button

This will initially place the minimised window at the bottom left of the screen, and any other minimised Image Viewer windows will be placed adjacent to it. However, once you move a minimised window by dragging it with the mouse, if it is subsequently opened then minimised again, it will return to where it was on the screen when last minimised.

To Move a window:

Click the left mouse button anywhere inside the header bar.
While holding the button down, move the mouse up, down and/or sideways until the Image Viewer window is in the required place.
Release the mouse button; the window will stay in this position until you move it again or close it.

To Resize the Image Viewer window:

Image Viewer windows are never opened in full-screen mode. When no Image Viewer windows are open, the window size stored as the default is that of the very last window that was closed. This then becomes the default size for any windows opened the next time you open an Image Viewer session.

However, regardless of the size of a window when you opened it, you can make each window whatever size you wish, up to full screen size.

You can make the Image Viewer full sized (maximise it) by clicking the Maximise button:
When maximised, you can return the Image Viewer to 'normal' size by clicking the button again:

To make the Image Viewer any size between the 'normal' size and maximised size:

Hover the mouse cursor over the edge of the window until it turns into a double-headed arrow:
(To move two adjacent sides together, hover the mouse cursor over a corner of the window).
While holding the button down, move the mouse up, down and/or sideways as appropriate until the Image Viewer window is the required size.
Release the mouse button; the window will stay this size until you resize it.

Note that subsequently opened windows will always initially be the old size, as the default settings of new windows are not reset until the very last window is closed. At this point, that window's size is stored and becomes the new default window size.

Features

Image View example 1

Header Bar	Shows the tooth (or teeth) the images are associated with. In the example, this is LL6.
Upper pane	The top part of the window shows small 'thumbnail' representations of the images. When you click on an image, it is given a red border and moved towards the centre to show it is selected. Click on the arrow buttons to scroll between multiple images.
Information	Below the thumbnail image(s) there are two lines of information about the currently selected image. The first line of information is the file name, and the image details: date and time created and any other information saved against the image, such as tooth number. The second line is any comments about the image that have been entered. To edit the comments, click the button. To view the full line of information, enlarge the window or click the button. Both the upper and lower panes can have more than one image displayed, and each can have a different image selected (as indicated by being highlighted with a red border). The detail in the information panel always pertains to the image selected in the lower pane.
Lower pane	The lower part of the window shows each image in a larger version. The size of the image is initially scaled to fit the size of the lower pane, but can be 'zoomed' to another size (see "Size" below). You can opt to display one, two, or four images in 'viewports' in this pane (see 'Number of Images' below). If you wish to, you can display the same image several times in the lower pane, then manipulate each image separately and independently.


Image Manipulation The features below describe various ways you can manipulate the image(s) displayed. None of these permanently alter the stored image (changes are lost once another image is selected).
Number of Images	If there is more than one image available, you can scroll the images by using the button to scroll the images left, and the button to scroll right. Each click will move the images one position, and shift the highlight to the image in the centre of the pane. Alternatively, you can click on a scroll button, and hold it down, and the images will scroll continuously until you release the mouse button. The three buttons on the middle section control whether the lower pane displays one, two or four image viewports: Click the appropriate button; this will display 1, 2 or 4 viewports. Click the viewport the image is to be displayed in. Select the image in the upper pane that is to be displayed in the currently selected lower viewport.
Size	There is a slider control in the bottom right-hand corner of the viewport for the currently selected image: This shows a thumbnail picture of the current image, and what size the image is set to, relative to the original image (in this example, 19%). To change the displayed size of the image in the viewport, drag the slider with your mouse, or place the mouse pointer on the slider bar and click: the slider will move to where the mouse cursor is. You can also use the middle scroll wheel of your mouse (if it has one) to increase or decrease the image size.
Pan	If the image size is larger than will fit in the viewport, scroll bars are displayed to enable you to move the image vertically and/or horizontally. You can also drag the image with your mouse, or click with the middle mouse button or wheel: this will display a four-headed arrow - move your mouse around this and the image will move in that direction.
Brightness	Right-click anywhere on the image and while holding the right button down, move the mouse to the right to make the image brighter, or to the left to make it darker.
Contrast	Right-click anywhere on the image and while holding the right button down, move the mouse up to increase contrast, or down to decrease contrast.
Image Toolbox	Select an image and click the button, or right-click an image, and the following menu is displayed, to enable you to manipulate the selected image:
	Show Normal: Shows the selected image at original size. Fit: Resizes the image to fit the current viewport size. False Colour: Applies a preset false colour to the image. Click the button again to return the image to normal colouration. Invert Colours: Inverts the current display colour. Click the button again to undo the colour inversion. Rotate left/right: Each click of one of these buttons will rotate the image through 90 degrees anticlockwise/clockwise as appropriate. Mirror Vertical/Horizontal: Shows a mirror image of the original, as if reflected in the horizontal or vertical axis. Sharpen: Makes the image appear sharper by emphasising the difference between adjacent spots on the image. Soften: Makes the image appear softer by blurring the distinction between adjacent spots on the image. Despeckle: Makes an image look less 'speckled' by merging small dots on the image with adjacent (background) parts of the image. Optimise Greyscale: Click this button once to optimise the contrast and brightness for black and white images such as x-rays.