General Module Function
(This module is available only in EVS PRO and MVS)
image_transition receives two images, each coming from Read_Image and is used to transition from one image to another in any one of a variety of methods, including image fades and wipes.
Module Input Ports
image_transition has three ports
The first two input ports each accept images from Read_Image.
The third input port accepts a float value between 0 and 1 which indicates the position of the Percent Transition to Right image slider.
Module Output Ports
image_transition has one output port. The output port outputs a new image that is the blended transition of the two input images. The resolution will match the resolution of the input fields. This is typically connected to the DisplayImage module for viewing, a mapper for texture mapping, or the Output_Images module.
Module Control Panel
The control panel for image_transition is shown in the figure above. The user interface shown above controls the method and amount of transition from image from the left input port to the right input port.
The Percent Transition to Right Image slider adjusts how much of the right image will be visible. This slider is affected by the Immediate Mode toggle, which allows changes to the image to occur as the slider is changed in real time.
The Transition Method can be any of the following:
Fade to Right Image: Fade from the left image to the right image, where any pixel is a percentage of the right image as specified by the slider.
Random Pixel Fade: Replace a random percentage of pixels from the left image with ones from the right image, roughly following the percent transition slider. This is a reproducible random effect, so once a pixel appears as the right image, moving the slider to the right will never cause it to switch back to the left image.
White Noise Fade: Pixels are randomly chosen from the right image, with the number of pixels in the right image roughly following the position of the slider. This method is non-reproducible, in that each time it is run, different pixels will be chosen. This is very similar to the above fade, but noticeably more "noisy".
Wipe from Left->Right: Perform an image wipe, from the left edge of the image to the right edge, replacing the left image with the right.
Wipe from Top->Bottom: Similar to above, except wipe from the top of the image down.
Wipe Rectangle: Similar to above, except wipe outward from the center of the image in a rectangle following the aspect ratio of the original image.
Wipe Circle: Similar to above, except wipe outward from the center of the image in a circle.
The Reverse Wipe Direction toggle reverses the direction a wipe is performed. If Wipe from Left->Right is the current method, and this toggle is on, the wipe will be performed from right to left.
Related Modules
-> read_image