Image Editing

                                       

• The image in Fig. 1 has been created/saved as a bitmap
• Bitmaps are made of pixels
• The image in Fig. 2 has been saved as a compressed image with too much compression
• Loss of pixel/data during compression so detail is lost in the image of the face
• The compression artefacts are visible to the human eye
• The pixels in Fig. 2 are no longer small enough to be indistinguishable by the human eye
• When enlarged the pixels of the face/image become visible
• The face now looks unrealistic/blocky so the features are not distinguishable.