Good and bad classification of pear ( Pyrus communis )

Pears are classified based on physical appearance, texture, and internal biochemical composition. High-quality ("good") pears are defined by their varietal typicality and lack of defects, while "bad" pears exhibit signs of spoilage, over-ripeness, or physiological disorders.Nutritional Profile :
One medium raw pear typically contains:
Calories: 101 kcal
Fiber: 6g (including both soluble and insoluble fiber)
Carbohydrates: 27g
Sugar: 17g (all natural, primarily fructose)
Protein: 1g
Fat: <1g (cholesterol-free and fat-free)
Vitamin C: Provides 6–12% of the Daily Value (DV), supporting immune function and skin health.
Vitamin K: Roughly 7% of the DV, which is crucial for bone health and proper blood clotting.
Potassium: Approximately 190–206mg (4–5% DV), which helps maintain healthy blood pressure and heart function.
Copper: About 16% of the DV, an essential mineral for nerve function and iron absorption.
Antioxidants: Rich in flavonoids (like quercetin) and polyphenols, primarily concentrated in the peel, which may have six times more antioxidants than the flesh.Sample Collection:
Fresh, appealing, pears were bought from local market of Malda, West Bengal, India (24°59'N, 88°08'E).
Image Capturing:
Images are captured by VIVOY21 phone having 51-inch IPS LCD, HD+ (720 x 1600 pixels) resolution display , MediaTek Helio P35 Octa-core processor, 4GB RAM (expandable by 1GB virtual RAM),64GB or 128GB storage (expandable up to 1TB via microSD), Dual: 13MP (main) + 2MP (macro) back camera, 8MP front camera, Funtouch OS 11.1 (based on Android 11) operating system, 164.3 x 76.1 x 8 mm dimensions, 182 g weight
Image acquisition was carried out daily for 20 consecutive days after purchase to monitor visual quality changes and shelf-life deterioration. Approximately 100 images were captured per day, out of which 40-50 high-quality images per day were selected for further analysis. The image dataset was used to study progressive changes in color, texture, surface integrity, and microbial spoilage during storage. This systematic image acquisition protocol enabled continuous non-destructive monitoring of pear quality throughout the period.
In this dataset, the bad folder contains 500 images and the good folder also contains 500 images of Pyrous communis (pear).
Therefore, the total number of images in the dataset is 1000.