Image inpainting and some of its main techniques are briefly presented. To inpaint image, an idea to solve wavelet image inpainting extending from wavelet domain to pixel domain and its theory and implement processing are given. A wavelet image inpainting method in pixel domain based on Rudin-Osher-Fatemi(ROF) model is proposed to put the idea above into practice. Experimental results show that the method can get good visual effect of image inpainting, with higher peak signal to noise ratio(PSNR) compared with former methods, and the PSNR of damaged image increases from less than 10 dB to 30 dB after processing using the proposed method. Therefore, the wavelet image inpainting is available in pixel domain, which means that the proposed method is practicable.