ColoRectalCADx: Expeditious Recognition of Colorectal Cancer with Integrated Convolutional Neural Networks and Visual Explanations Using Mixed Dataset Evidence

Table 11

Comparison of Grad-CAM images with CNN algorithms.

Dataset	Images in dataset	Classes in dataset	CNN architecture	Grad-CAM output obtained	Grad-CAM; Polyp; Prediction
Mixed dataset	19,621	24	VGG16	Yes	High
			VGG19	Yes	Moderate
			ResNet50	Yes	Moderate to high
			DenseNet201	Yes	Very high
			EfficientNetB7	Yes	Low