In infant heart ultrasound images, problems often appear such as low brightness, noise and blur. To overcome this problem, an improvement process is needed using deep learning techniques such as MIRNet, Autoencoder, EDR-CNNs, and LLCNN. The best method is MIRNet, which produces PSNR values of 36.37 dB, MSE of 16.69, and SSIM of 92.86. In addition, the results obtained were tested through classi…