Digital image analysis aided adulteration detection data set for Roasted Gram flour adulterated with all purpose flour
Description
Adulteration Detection of roasted gram flour with all purpose flour About Roasted Gram Flour ( chhatu) Contains a highly nutritious flour rich in protein, dietary fiber, and essential minerals like iron, magnesium, and potassium. Adulteration Issue Presence of all purpose flour reduces purity, nutritional value, and may cause digestive discomfort. Visual detection is difficult as all purpose flour blends with chhatu. Detection Methodology Dataset creation: Images of pure and adulterated chhatu with varying flour percentages, labelled by experts. Image Preprocessing: Techniques like grayscale, RGB, HSV, median smoothing, adaptive thresholding, and edge detection to enhance visual differences. Feature Extraction: Identify texture, color, and surface pattern differences between pure and adulterated samples. Sample preparation Fully grounded roasted gram flour (Chattu)of Ganesh Company (local high-quality variety) were collected from [Netaji Market, Rathbari, Malda, West Bengal, India]. Time for conducting 11.00 am to 8.00 pm. The final moisture content of the roasted gram flour or chattu were 4–5% (dry weight basis), and The total ash content of chhatu typically ranges from 5% to 8%, depending on the source and processing methods. The rosted gram flour were unpacked and sieved using a fine mesh to determine whether there is any impurity or not. The chattu was of very good quality so that sieving didn't result into any kind of impurities. All purpose flour was collected from the same market and shop, sieved to remove dust and impurities. The sieve test didn't give a result for any impurities, indicating the flour was pure and non-adulterated. Chattu was mixed thoroughly with all purpose flour at different proportions (0%, 5%, 10%, 15%, 20%, 25% 30%, 35%, 40%, 45% and 50%) to prepare a homogeneous mixture of adulterated samples. Image Acquisition In total, 24 sets of samples were prepared: 100% pure chhatu(on white and black A4 sheets both), 100% pure all purpose flour(on white and black A4 sheets both), and 10 sets of adulterated samples of chhatu containing 5–50% of all purpose flour by weight on white and black A4 sheets both(10 on white +10 on black). A total of 20 equal-sized cells were drawn on a white and black A4 paper sheets (210 mm × 297 mm, 80 gsm). The samples were spread over the paper into a thin layer. Thus, 20 equal-sized cells were loaded with similar samples (Fig. 1). In total, (24 × 20) + 24 × 1= 504 images were captured. Each of the cells was photographed separately using a SAMSUNG'S GALAXY, M01S (Android 11, octa-core MediaTek Helio P22 (MT6762) processor, comes with 3GB of RAM and 32GB of internal storage 6.2-inch HD+ PLS TFT Infinity-V display with a resolution of 720 x 1520 pixels,dual-camera setup with a 13MP main sensor and a 2MP depth sensor. The front-facing selfie camera is 8MP. ) without flash. The perpendicular distance between the sample surface and the camera lens was maintained at 15 cm.