Image Background Remover Using Python

I want to make Image Background Remover Using Python But I do not know how much data It will take and time to reach the accuracy of I'm using U-2-Net Ai models Some results are same but not every result is as good enough as In a rating I would tell my app as 2/5 and as 4/5 Please tell me How can I achieve accuracy like Any help or suggestions are appreciated. Thanks

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