The AI method classifies the sample, whereas the XAI methods mark areas that were relevant to the AIs decision, therefore the XAI provides the explanation for the AI classification.
The upper left panel visualizes the Gleason Scoring AI classification.
The upper right panel visualizes the plain sample.
The lower left panel visualizes the selected XAI method using a Gleason Score heatmap. Thus, the heatmap of the XAI method is visualized for each class individually class.
The lower right field visualizes the selected XAI method using a Jet heatmap. That means the heatmap is created across all classes.