How to use Lambdad to save hovernet instance to csv along with file name

[OmarAshkar]

Hi,

I am trying to save hovernet instance_info to csv file. Currently I have the following simple function.

    def inst_info_to_df(instance_info):
        df = pd.DataFrame.from_dict(instance_info,orient='index')
        df.to_csv("slide_name.csv")
        print("done export")

I just used Lambdad(keys=["instance_info"], func=inst_info_to_df).

This works, but I need to also pass file names from image_meta_dict. I cannot find a way to pass both instance_info and image_meta_dict.

Thanks in advance !

[KumoLiu]

Hi @OmarAshkar, you could use Lambda

    def inst_info_to_df(data):
        df = pd.DataFrame.from_dict(data["instance_info"],orient='index')
        df.to_csv(f"slide_name{data['image_meta_dict']['filename_or_obj'].split('/')[-1]}.csv")
        return data

Lambda(func=lambda x: inst_info_to_df(x))

Hope it can help you, thanks!