contrast gradient 中文意思是什麼
contrast gradient
解釋
對比度梯度-
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。 -
Products mainly for cowboy clothing washed processing, an alternative to traditional storage techniques, so that the processed cowboy clothing millstone snowflakes section number, a strong sense of three - dimensional, colored light contrast gradient well, i use the cellulose enzyme companies not only to reduce clothing and equipment wear and tear, but a moderate processes, efficient, sewage little benefit environmental protection, energy saving and other saving benefits, with green textile, dyeing green development
產品主要用於牛仔服裝水洗加工中，替代傳統的石磨工藝，使加工后的牛仔服裝磨石雪花節多、立體感強、色光對比度好，使用我公司的纖維素酶不僅減少服裝和設備的磨損，而且具有工藝溫和、效率高、排污少，有利於環境保護、省時節能等優點，符合綠色紡織、綠色染整的發展要求。 -
Firstly, the principle of phase gradient autofocus and rank one phase estimate and its advanced are detailed. secondly, it proposes an algorithm of fast maximum contrast phase compensation after discussing its similar algorithm fast minimum entropy phase compensation
討論了經典的相位梯度自聚焦演算法、秩一相位誤差演算法及其改進形式;在討論快速最小熵相位補償演算法的基礎上，提出了對比度最優相位調整演算法，實測數據處理表明了該演算法的有效性。 -
This dissertation presents several image fusion methods based on mpd, such as image fusion based on laplacian pyramid ( lp ), image fusion based on ratio pyramid ( rp ), image fusion based on contrast pyramid ( cp ), and image fusion based on gradient pyramid ( gp )
文中給出了多種基於多尺度塔形分解的圖像融合方法，例如，基於拉普拉斯金字塔的圖像融合方法、基於比率金字塔的圖像融合方法、基於對比度金字塔的圖像融合方法和基於梯度金字塔的圖像融合方法。 -
Abstract : in this paper, the nonlinear optimal control problem connected with the ordinary differential system is considered, two modifications to the standard gradient procedures are constructed. the presented methods are based on the qualitative approximations of the cost functional. for linear - quadratic problems, the modifications have the property of the nonlocal improvement in contrast to the standard gradient procedures. some results relating to the convergence of the new methods are proved
文摘:討論非線性最優控制問題構造的標準梯度方法的兩種改進方法.文中的方法是以罰函數的有效近似為基礎，與標準梯度方法相比，該方法對于非線性二次問題具有非局部的特點，同時給出相關收斂結果
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