About classification accuracy

[U-Help]

Hello, I'm confused that how you get the curve of classificaiton accuracy per class in inference.
Can you give me some suggestions or share the code?

[fcjian]

We first get the object features by applying the RoI-align to the FPN features based on the ground-truth bounding boxes. Then, we classify the object features with the classification head of R-CNN, and calculate the classification accuracy for each category.