contrast filter 中文意思是什麼
contrast filter
解釋
反差濾光片-
In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size
本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。 -
On the basis of practically achieved low - frequency laser - vibration measuring - system, this thesis analyses the principle of laser - vibration measuring - system, the optical factors which have effect on contrast degree of interference fringe, the optical - electric transformation factors which have effect on measuring accuracy, the important of filter for improving the accuracy in the absolute calibration and the outward vibration which has effect on system accuracy, etc. in chapter one, the background of laser measuring vibration, and then followed by its current status, is introduced and analyzed
本論文根據實際研製的激光測振儀系統，從提高激光測振儀精度的角度出發介紹了激光測振儀的原理，並詳細地剖析了光路對測振儀干涉條紋對比度的影響、光電轉換對測量精度的影響、光電信號的濾波放大以及外界振動對測振儀系統的影響等技術問題。 -
A color filter can be used to make a subject more prominent against the background by absorbing one specific color. it is also used for control of image contrast
彩色濾片使照射光帶有顏色，強調被照物對比，更易判別。同時增加呈像效果。 -
In image preprocessing, image quality is improved by using mathematical morphology to remove background of the image, making gray - scale transformation to enhance contrast and smoothing processing to filter noise
本文運用形態學運算消除背景、進行灰度變換增強對比度和進行平滑過濾噪聲來完成圖像的預處理。 -
In contrast, the following methods are unsafe in one way or the other : directly looking at the sun with naked eyes ; looking at the sun through a pair of sun glasses, exposed films, smoke - darkened glass or small sun filter placed closed to the eyepiece ; looking at the reflection of the sun from a pool of water or dark ink
以肉眼直接觀看太陽透過太陽眼鏡完全曝光底片俗稱盲片熏黑的玻璃或擺放在目鏡上的小型太陽濾鏡觀看太陽觀看太陽在水中或墨水中的倒影。 -
It can accomplish the contrast reverse transformation, contrast linear enhancement, histogram modification, filter ( lowpass and highpass ), and the writer give two new algorithms which has been realized in fpga, one is automatic gain linear enhancement, the other is complicated background restrain based on common knowledge
其核心部分採用altera公司的ep1k100qc208晶元，構造專用處理功能，實現了直方圖統計與均衡化、高通濾波、 fir濾波、中值濾波等演算法。同時提出了自動增益線性變換、基於知識的紅外背景抑制二種新演算法，並在fpga中實現。 -
Detecting algorithm based on background prediction, maximum background prediction, most similar background prediction, displacement pipeline filter, target movement characteristics algorithm based on sub - pixel analysis and the method of the contrast similarity among frames are introduced for the target detecting in single image and sequence images
在單幀圖像和序列圖像目標檢測方面提出了基於背景預測的檢測方法，最大化背景預測方法、最相似背景預測方法、位移式管道濾波方法、基於亞象元分析的目標運動特徵演算法和目標對比度相似性的幀間目標檢測方法。 -
You have to put a deep red filter on the lens to increase the contrast
你還需要在鏡頭上加一塊深紅色的濾光鏡來提高反差。 -
Contrast study of some ty pical demodulation methods is made in this paper and method of fiber fabry - perot tunable filter ( ffp - tf ) is confirmed
針對以上問題，採用了一種基於dsp和cpld的信號處理卡，實現了數據的實時高速處理和傳輸。 -
Apply the filter now : filter - blur - smart blurand distort the head shape, applyingedit - transform - perspective. make the layer look more in contrast : image - adjustments - brightness / contrast
點擊濾鏡-模糊-特殊模糊，並將臉進行扭曲，點擊編輯-變換-透視變換。增強一下圖片的對比度（圖像-調整-亮度/對比度） 。 -
The arithmetic expressed in this text solved contradiction between the watermark ' s transparence and the arithmetic ' s maleness, using the inlaid watermark of that arithmetic having goodly transparence, and the result of the experiment shows the arithmetic has goodly maleness to jpeg compress, noise, low channel filter wave, mosaic, signal tone up, secondary watermark, cut and zoom, especially to sharpen, strengthen contrast, strengthen edge, equilibrium, and so on, signal strengthen can hardly effect to get away the watermark
實驗表明，本文演算法較好地解決了水印透明性與演算法魯棒性之間的矛盾，使用該演算法嵌入的水印具有較好的透明性，同時本文演算法對jpeg壓縮、噪聲、低通濾波、馬賽克、信號增強、二次水印、剪切和縮放等操作有較高魯棒性，特別是銳化、對比度增強、邊緣增強、直方圖均衡等信號增強處理幾乎不影響水印的抽取。 -
During image recognition, it reduces the yawp and improves the quality of the image with the technology of the median filter, it uses the method of maximum between - class variance to segment the object, then gets better effect. the algorithm is simple, and the adapted capacity is great. it doesn ’ t influence by the change between the contrast and lighteness of the image. so it applies on the real time system
在圖像識別過程中，本文運用了中值濾波技術降低了噪聲，提高了圖像的質量，並採用了最大類間閾值分割法分割目標，得到了較好的效果，該方法計算簡單，自適應性強，在一定條件下不受圖像對比度與亮度變化的影響，因而在一些實時圖像處理系統中得到了廣泛的應用。 -
Contrast to the simple pca, the filter performance of the nonlinear local project noise reduction method has been improved greatly, it can recover the wave of the origin signal and trajectories of phase space even in low s / n ratio
與一般的主元分析相比，非線性局部投影濾波方法的性能明顯提高，在較低信噪比下仍能較好地恢復原信號的波形和相空間軌跡。 -
Shortcomings cn400 film is the contrast between the weak and dye - tinted film is film - based, in natural light, the right to change the video transfer almost all color filter is not much reaction, this film is not suitable for outdoor natural light in the shooting
缺點是cn400膠片的反差較弱，染料型膠片是有色片基，在自然光線下，對能夠改變影調的各種濾色鏡幾乎沒有多大反應，因此這種膠片不適合於戶外自然光下的拍攝。
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