Learn to implement and train a U-Net model for melanoma detection using TensorFlow and Keras in this comprehensive tutorial. Begin with data preparation, accessing and preprocessing a substantial dataset of melanoma images and corresponding masks. Explore data augmentation techniques to improve model results. Build a U-Net model using TensorFlow and Keras, then guide through the training process to optimize melanoma detection. Test the pre-trained model on fresh images, generating masks that highlight melanoma regions. Visualize results in real-time, comparing predicted masks with ground truth. Covers U-Net architecture, dataset preparation, model building, training, testing, and result visualization in a step-by-step approach.