Visual artifacts are anomalies during visual representation of e.g. digital graphics and imagery.

Examples in digital graphics

• Image quality factors, different types of visual artifacts
• Digital artifact
  Digital artifact
  A digital artifact is any undesired alteration in data introduced in a digital process by an involved technique and/or technology.-Possible causes:...
  
  s, visual artifacts resulting from digital image processing
• Noise
  Image noise
  Image noise is random variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the sensor and circuitry of a scanner or digital camera...
  
  
• Screen-door effect
  Screen-door effect
  The screen-door effect or fixed-pattern noise is a visual artifact of the projection technology used in digital projectors, where the fine lines separating the projector's pixels become visible in the projected image...
  
  , also known as fixed-pattern noise (FPN), a visual artifact of digital projection technology
• Distortion
  Distortion
  A distortion is the alteration of the original shape of an object, image, sound, waveform or other form of information or representation. Distortion is usually unwanted, and often many methods are employed to minimize it in practice...
  
  
• Silk screen effect
  Silk screen effect
  Silk Screen Effect is a visual phenomenon seen in rear-projection televisions. SSE is described by viewers as seeing the texture of the television screen in front of the image. SSE may be found on all rear-projection televisions including DLP and Liquid Crystal on Silicon . The effect is most...
  
  
• Rainbow effect
• Screen tearing
• Purple fringing
  Purple fringing
  In photography, and particularly in digital photography, purple fringing is the term for an out-of-focus purple or magenta "ghost" image on a photograph...
  
  
• Chromatic aberration
  Chromatic aberration
  In optics, chromatic aberration is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point. It occurs because lenses have a different refractive index for different wavelengths of light...
  
  
• Moiré pattern
  Moiré pattern
  In physics, a moiré pattern is an interference pattern created, for example, when two grids are overlaid at an angle, or when they have slightly different mesh sizes.- Etymology :...
  
  

In microscopy

In microscopy

Microscopy

Microscopy is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye...

, an artifact is an apparent structural detail that is caused by the processing of the specimen and is thus not a legitimate feature of the specimen.

For example, a crush artifact is artificial elongation and distortion when smearing cells or tissue for microscopy.