An image capture method and apparatus obtains a preview image in a capture preview window, segments the preview image into N image blocks based on N objects included in the preview image, where N is a positive integer, determines M image blocks whose definitions do not meet a preset definition criterion from the N image blocks, where M is a positive integer less than or equal to N, adjusts an exposure parameter of each of the M image blocks, outputs prompt information when the definitions of the M image blocks meet the preset definition criterion. Prompt information prompts a user to capture the image, receives a capture instruction from the user, and captures the preview image in the capture preview window based on an adjusted exposure parameter.