DV2000 Help
Choose a category from the list below or enter search text into the Search box.
Can I measure Cup-Disk Ratios?
How can I create a red-free image?
How can I convert the black borders around an image so the black is not printed?
Can I Measure Cup-Disk Ratios?
Information regarding Defining And Editing Attribute Types can be found in the DV2000 User Manual, available from the Help > DV2000 Diagnostic Video Imaging menu.
How Can I create a red free image?
To create a red free image, you need to use the Colour Separate Dialog.
Information regarding Defining And Editing Attribute Types can be found in DV2000 Help. Select Help > DV2000 Diagnostic Video Imaging from within Medmont Studio.
The colour separate dialog allows you to extract a single or a combination of colours from the current image.
You can apply colour separate models while Importing/Capturing or from main Medmont Studio window. The procedures described below apply to all three cases.
Select the Image you want to apply colour separate models to from the explorer pane, and change the view mode to image view. Select Image > Colour > Separate Colour Channel.
Select the colour model from the top dropdown list and a channel from the bottom dropdown list. For example, to create a Red-Free version of a retinal image, use the RGB colour model and extract Green/Blue channels.
If you often use the same parameters for this operation then you can also save this as a custom operation on the toolbar. Click the button at the bottom left corner.
Apply a selected operation to an image by selecting Image -> Custom Operation and select the operation you wish to apply to the image or select the appropriate icon on the toolbar.
How can I convert the black borders around an image so the black is not printed?
The Black Invert Operation can be used to invert all pixel intensities below the specified threshold, i.e. darker shades, to white. You can set this threshold from the Black Invert Dialog. Select an image, then choose Image > Color > Black Invert.
This operation is especially useful while printing images from retinal cameras, which often have a substantial black border. Applying the operation converts the black border to white. This saves a considerable ink when printing and subsequently reduces paper curl (when using ink-jet printers). The inversion threshold required to produce optimal results depends on the particular camera. Select a low level, i.e. 5, then select OK. Increase or decrease threshold levels to achieve a satisfactory display.
You can then print the image.
Undo all changes to the image by choosing Undo from the Edit menu.
If you often use the same parameters for this operation then you can also save this as a custom operation. This option is only available if you have a Medmont Studio Feature Pack 1 licence. If you are unsure if you have the required Feature Pack 1 licence, check 'installed licences' in the Tools > License manager menu. If you need to purchase this, contact us for details.
From the black invert dialog screen after you have set the inversion threshold level at a acceptable level, click on the Custom Image Operation button at the bottom left corner. Name the operation and select OK.
This operation can then be incorporated in a user defined Image Source and automatically applied while printing without having to apply the operation to each image.
Select Tools then DV2000 Image Sources. Either create a new image source or edit you existing image source. In the Automatic Image Operations area, Modify the Print operation to apply the Custom Image Operation you created before.
Images captured using this Image Source will then be printed using this operation.
Tuesday, July 27, 2010, Administrator