图像中的artifacts

artifacts

瑕疵

---

伪影(Artifacts)

伪影(Artifacts)-CT-基础术语 - 影像园 http://www.xctmr.com/baike/ct/c34b5413e305b453bf0d91bfaaf058ed.html

---

imatest的画质因素分析页面

Image Quality Factors | imatest http://www.imatest.com/solutions/iqfactors/

Artifacts | imatest http://www.imatest.com/solutions/artifacts/

---

矫饰。

伪色（细节）。

Signal processing (especially operations performed during RAW conversion) can cause significant visual artifacts, including oversharpening “halos” and loss of fine, low-contrast detail. These artifacts result from nonlinear signal processing (so-called because it varies with the signal). Log frequency-Contrast chartImages may be sharpened (MTF boosted) in the presence of contrasty features like edges and blurred (lowpass filtered) in their absence. This generally improves measured performance (both sharpness and noise/Signal-to-Noise Ratio (SNR)), but it may result in a degradation of perceived image quality, for example, a “plasticy” cartoon-like appearance of skin even though edges are strongly sharpened. This loss of detail cannot be measured with SFR.

信号处理(特别是在原始转换过程中执行的操作)可能导致显着的视觉伪影，包括过度锐化“光晕”和丢失精细、低对比度的细节。这些伪影是非线性信号处理的结果(因为它随信号的变化而变化)。日志频率-对比度图表图像可能被锐化(MTF增强)，在出现对比特征，如边缘和模糊(低通滤波)，在他们没有。这通常提高测量性能(锐度和噪声/信噪比)，但它可能导致图像质量下降，例如，一个“塑料”卡通样的外观，即使边缘是强烈锐化。这种细节的损失不能用SFR来衡量。

原文：
An 8-bit color cube does not have enough data in its root sector to support an unmodified logarithmic remap without producing undesirable artifacts

原文对antifact的注解：
Artifacts include striping, chroma noise, and sparse-data noise

伪影包括条纹、色度噪声和稀疏数据噪声。

方块效应，锐化造成的亮边，毛刺等。

【转载自】

“Artifacts”在评价画质方面应该怎样翻译？ - Canon SLR/DSLM论坛 http://forum.xitek.com/forum.php?mod=viewthread&tid=1605692&page=1&ordertype=1