Data Type: Multi-Channel Field ()

Description:

Multi-channel objects are used to group multiple gray level images of the same size. Display modules such as Ortho Slice, Image Ortho Projections, or Volume Rendering then can be directly connected to the multi-channel object, thus allowing all channels to be operated on simultaneously.

Multi-channel objects are created automatically when reading microscopic image files containing multi-channel information, e.g., Zeiss TIF files or Leica image files. Alternatively, channels can be manually attached to a multi-channel object.

For each scalar field attached to a multi-channel object a special-purpose port is shown, allowing you to define the channel's data window as well as its preferred color. The data window is usually interpreted in such a way that the lower data value is mapped to black while the upper is mapped to the channel's preferred color.

Connections:

Channel 1 [required] Used to attach the first scalar field to the multi-channel object. This input determines the dimensions and the data type of the multi-channel object.

Channel 2 [optional] Used to attach a second scalar field to the multi-channel object. The second input must have the same dimensions and the same data type as the first one. After a second input has been connected, a new input called Channel 3 will be created, and so on. In this way an arbitrary number of channels can be connected.

Note: It should be noted that the multi channel field does not accept connections to data sources which are controlled by a Time Series Control.

Ports:

Channel 1

Determines the preferred data window of a channel as well as its colormap. For constant colormap, if the lower bound of the data window is set to 100, voxels with values less than or equal to 100 will be drawn in black by the slicing modules Ortho Slice and Slice.

Channel 2

Specifies the settings of the second channel.