灰度分辨率是用来量化灰度的比特数,一般都是2的整数次幂,常见的有8bits8bits,16bits16bits。 伪轮廓 当灰度分辨率过小时,容易在数字图像灰度平滑区域中造成伪轮廓(False Contouring)。伪轮廓属于数字图像噪声中的一种,主要表现为在数字图像或者视频信号中所呈现的画面平场区域出现明显的类似于等高线的不连续过渡带,从而...
Image undersampling and image size reduction. 数字图像表示法:图像取样和量化。图像欠采样和缩小图像尺寸。4. Image resizing and restoration: Nearest-neighbor, bilinear and bicubic interpolation technique for image restoration. 图像大小调整和修复:用于图像复原的最近邻插值、双线性插值和双三次插值技术。5. ...
2.2 Image Sampling and Quantization Sampling is the process using a sensor to get images in discrete positions, while quantization, usually right behind sampling is the process to turn the data obtained in the sampling process into permissive discrete values. In fact, here because we use digital ...
3. 图像传感和采集(Image Sensing and Acquisition)。4. 图像取样和量化(Image Sampling and Quantizatio...
However, one of the main technical obstacles for the implementation of the TV idea was the transition from photographic full-format to element-by-element processing and image transmission. Simultaneous generation and transmission of all image elements would require connecting each of the TV transmitter...
It focuses on image sensing and acquisition, image sampling and quantization; spatial transformation, linear and nonlinear filtering; introduction to convolutional neural networks, and GANs; applications of deep learning methods to image processing problems; image enhancement, histogram equalization, image ...
•Enable JPG Chrominance Downsampling- Because the eye is less sensitive to high-frequency color information than high-frequency luminance, JPEG images divide image information into luminance and color components. When a JPEG image is compressed, the luminance component is left at full resolution, ...
Section 4.1 deals with image sampling, and Section 4.2 describes image quantization. In Section 4.3, some image enhancement techniques are given. Section 4.4 analyzes image restoration. Image compression, or coding, is presented in Section 4.5. Finally, Section 4.6 introduces the main issues involved...
SamplingandReconstruction Sampling Reconstruction SourcesofError •Intensityquantization Notenoughintensityresolution •Spatialaliasing Notenoughspatialresolution •Temporalaliasing Notenoughtemporalresolution () ∑ −= ),( 2 2 ),(),( yx yxPyxIE 4 Aliasing(ingeneral) •Ingeneral: Artifactsduetounder-...
A/D conversion consists of two distinct subprocesses: sampling and quantization. View chapter Related terms: Energy Engineering Antenna Image Processing Amplifier Sidebands Dynamic Range Convolutional Neural Network Signal-to-Noise Ratio Video Signal Transducer View all Topics Recommended publications Signal...