Get the best view of your multichannel images with IKOSA.

Find out about the ways to view multichannel images, adjust individual channel intensity as well as edit settings for the whole project!

What to expect from this page?

What are multichannel images?

Multichannel images are composite images consisting of different color channels stacked on top of each other. Multichannel images belong to the category of multidimensional images since each color channel represents an additional layer of information added to the images.

The pixel values for each channel in the image depending on the wavelength of light detected by the microscope. Unlike in the case of RGB images, where original pixel values might be lost due to the merging of channels, in multichannel images, this information is preserved. Yet, multichannel images cannot be properly displayed with conventional image viewing software. You need professional software with multichannel functionality to view these types of images.

How to upload multichannel images in IKOSA?

Please check this article https://kmlvision.atlassian.net/l/cp/gHgtA11z

Viewing multichannel images in IKOSA

You can view multichannel images in IKOSA as one composite overlaid image or as individual channel images.

Opening a multichannel image

To open a multichannel image in IKOSA follow the steps below:

1. Select a Project from the Projects overview page

2. Go to the Image Library

3. Click an image of your choice to open it

4. Click the Image Library page in the left-side menu to navigate between the images

Open

Viewing multichannel setting

1. Go to the Multichannel page in the left-side menu

2. Here you can:

   1. Change the Linear/Logarithmic view of the histogram

   2. Show/hide channels

   3. Show/hide intensity ranges

Open

Adjusting channel intensity

To ensure that your images have the right intensity for your analysis you can manually adjust these levels.

1. Click the Channel Visualization button under the channels

2. Navigate to a graph chart of the channel that you want to adjust

3. Check the changes in the preview window

4. Move the graph cursor to the desired position

5. Click the Save and Apply button

Editing multichannel settings

You can edit multichannel settings from the Image Viewer or Multichannel page itself.

Editing settings from the Image Viewer

1. Go to Multichannel panel

2. Click Edit multichannel settings button

3. In the pop up window you can:

   1. edit current multichannel setting details and channel settings (if they are not default)

   2. change between the existing multichannel settings

   3. create new multichannel settings

Editing settings from the Multichannel page

1. Go to Multichannel page on the left-side menu panel

2. Here you can:

   1. edit current multichannel setting details and channel settings (if they are not default)

   2. change between the existing multichannel settings

   3. create new multichannel settings

Annotating multichannel images

Once in the Image Viewer, you can draw annotation shapes on your multichannel images. You can do this by selecting one of the drawing tools from the right-hand side toolbar.

If you draw your annotation shapes in one of the channel layers, it will appear respectively in all other channel layers of the image.

If you need help with annotations, please read our article https://kmlvision.atlassian.net/l/cp/ioNxeSnj

Now you are good to go and set up your first multichannel project in IKOSA.

If you found this tutorial helpful, share it with others on your social media channels!

If you have any questions, please send us an email at support@ikosa.ai.

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