61,984 articles
Image captioning
Image captioning is the AI task of generating a natural-language sentence that describes an image, bridging computer vision and natural language processing since the 2014 Show and Tell model.
Image classification
Image classification is the computer vision task of assigning a whole image to one category label, and since 2012 the standard benchmark for deep learning models.
Image compression
Image compression is the set of methods for representing digital images in fewer bits, divided into lossless methods like PNG and lossy methods like JPEG, which achieve roughly 10:1 to 20:1 size reductions.
Image deblurring
Image deblurring is the task of recovering a sharp image from one degraded by blur, modeled as convolution with a blur kernel, split into non-blind and blind deblurring.
Image dehazing
Image dehazing is a computer vision method that removes haze and fog from a photograph by inverting atmospheric scattering, recovering a clearer image with higher contrast.
Image denoising
Image denoising is the task of recovering a clean image from a noisy one, one of the oldest and most studied problems in image processing.
Image editing
Image editing, also called image manipulation or photographic editing, is the alteration of photographs, ranging from darkroom dodging and burning to generative AI that creates pixels no camera ever recorded.
Image forgery detection
Image forgery detection, also called image authentication or image integrity verification, determines whether a digital image was altered, and in its localization form identifies which pixels were manipulated.
Image fusion
Image fusion is a computational imaging method that combines complementary information from several images of the same scene into one image, supporting pan-sharpening, change detection, and medical imaging.
Image hashing
Image hashing converts an image into a compact binary code so perceptually similar images receive similar codes, unlike cryptographic hashes, which change completely with any single input bit.
Image inpainting
Image inpainting reconstructs missing or corrupted regions of an image, named in a 2000 SIGGRAPH paper and later transformed by deep learning and diffusion models.
Image intensifier
An image intensifier is a vacuum tube that amplifies low-light optical images using a photocathode, microchannel plate, and phosphor screen, the core of analog night vision devices.
Image matting
Image matting is the computer vision task of estimating each pixel's foreground opacity and color, so the foreground can be composited onto a new background in image and video editing.
Image noise
Image noise, also known as visual noise or sensor noise, is the random variation of pixel values in a digital image not present in the scene.
Image quality assessment
Image quality assessment (IQA) measures how faithfully an image represents its subject, using metrics such as PSNR and SSIM, plus no-reference models like BRISQUE and NIQE.
Image quantization
Image quantization is a digital image processing method that reduces the number of distinct colors or intensity levels in an image, so it can be stored with fewer bits.
Image registration
Image registration, also known as coregistration or image matching, geometrically aligns two or more images of the same scene taken at different times, viewpoints, or sensors.
Image scaling
Image scaling, also known as image resampling or resizing, changes the number of pixels in a digital image, with the interpolation method determining quality and speed.
Image scanner
An image scanner, also called an optical scanner, is an input device that converts documents, photographs, and film into digital images, typically one narrow line at a time.
Image segmentation
Image segmentation, also called digital image segmentation, is the task of partitioning an image into labeled regions so objects and structures are separated from the background.
Image sensor
An image sensor is a semiconductor device that converts light into electrical signals so a camera can record an image, using CCD or the now-standard CMOS architecture.
Image steganography
Image steganography is a technique that conceals a secret message inside a digital image by imperceptibly modifying pixel values, hiding the message's very existence rather than its content, a practice that took shape in the 1990s.
Image stitching
Image stitching, also called photo mosaicking, is a computer vision technique that combines overlapping images into one panorama or high-resolution mosaic, widely used in smartphones and satellite mapping.
Image subtraction
Image subtraction is a digital image processing operation that computes pixel-wise differences between two images, making changed or moving regions stand out for motion detection.
Image warping
Image warping is a spatial transformation of a digital image that maps every pixel position to a new location, used in registration, panorama stitching, and texture mapping.
Image watermarking
Image watermarking is a digital image processing technique that embeds hidden information, such as an ownership identifier or authentication data, into an image's pixels for later detection or extraction.
Image-to-image translation
Image-to-image translation is a computer vision problem of learning to convert images between domains while preserving content, with Pix2Pix as the paired and CycleGAN as the unpaired reference method.
Image-to-video and motion conditioning
Image-to-video and motion conditioning is a family of AI techniques for generating video with diffusion or transformer models conditioned on a start frame, reference image, or motion trajectory.
ImageBind
ImageBind is a multimodal embedding method introduced by Meta AI in May 2023, binding images, text, audio, depth, thermal, and IMU data in one shared space.
ImageJ
ImageJ is public domain Java software for processing and analyzing scientific images, created by Wayne Rasband at NIH in 1997 and widely used in biological image analysis.