Color image registration

[loladidi]

I tried to register with color images, but it got very strange results. Do you know the reason for this?

[soupault]

@loladidi hi! I don't think Elastix supports multichannel images. In your case, the image was likely treated as a 3D volume. This led to the channels being transformer using 3 independent warping fields, thus, the results.

There are two ways to handle multichannels images with Elastix:

1. Convert to grayscale and proceed with your existing pipeline.
2. Break down the samples into individual channels and use Elastix directly as follows (from Elastix user guide):
   

[loladidi]

你好！我不认为 Elastix 支持多通道图像。在您的案例中，图像可能被视为 3D 体积。这导致通道使用 3 个独立的翘曲场进行变压器，因此产生了结果。

有两种方法可以使用 Elastix 处理多通道图像：

1. 转换为灰度并继续使用现有管道。
2. 将样品分解为单独的通道，并直接使用 Elastix，如下所示（来自 Elastix 用户指南）：
   

If the above two methods are used, the resulting image will be a grayscale image, but I want the final result to be a color image. Is it possible to use pyelastix to achieve this?

[soupault]

@loladidi I suggest looking into the second method closer. It is as close as it gets with elastix to the solution of your problem.