Enhancement is the process of improving image quality. In this study, the brightness enhancement of the normal image was converted into a brightness image. This research contains face detection using the Viola Jones method. This research uses image data as much as 20 jpg images, 5 jpeg images, and 5 png images. This method is the method most widely used to detect faces because it is known to have a fairly high accuracy. The Viola Jones method combines four main keys, namely Haar Like Feature, Integral Image, Adabost Learning, and Cascade Classifier. In this study also tested the image value of each image, testing the image value based on the normal image and image brightness. Based on the tests carried out on the face detector, the accuracy rate is 90.75%. As for the test result, the image value in one image almost has the same histogram value between the normal image and the image after brightness.