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图片放大不失真:S-Spline

$F编者按:$E$T在日常生活中,我们常常需要对图片进行处理,但对于普通用户,并不  (本文共2页) 阅读全文>>

权威出处: 电脑报2002-08-12
《少年电脑世界》2002年10期
少年电脑世界

图片放大不失真——S-Spline

也许你收集了不少漂亮的图片,但有的图片(如.bmp格式的图片)放大尺寸后就会失真(图片变得不清晰了)。难道没有软件能解决这个问题么?有!S-Spline就是我们要寻找的软件...  (本文共1页) 阅读全文>>

《电脑应用文萃》2001年08期
电脑应用文萃

S-Spline,图片放大不失真

我们常用的看图软件(比如ACDSee)对图片的放大效果均不遂人意,特别是放大倍数稍大时(比如超过300%)...  (本文共2页) 阅读全文>>

《Science China(Information Sciences)》2017年07期
Science China(Information Sciences)

B-spline surface fitting to mesh vertices

Here we propose a novel method of fitting B-spline surfaces to input mesh vertices.For a mesh model that is difficult to fit with one B-spline surface,we divide it in...  (本文共3页) 阅读全文>>

《Science China(Information Sciences)》2016年03期
Science China(Information Sciences)

A B-spline curve extension algorithm

B-spline curve extension is an important operation in computer aided design systems. In this paper,we present a new extension algorithm for B-spline curves. The algorithm uses curve unclamping to generate a uniform B-spline curve segment from the origina...  (本文共9页) 阅读全文>>

《Transactions of Nanjing University of Aeronautics and Astronautics》2014年06期
Transactions of Nanjing University of Aeronautics and Astronautics

Compact Car-Body Surface Design with T-spline Surface

Creating proper B-spline surface models is a very challenging task for designers in car-body surface design.Due to the tensor-product structure of B-spline surface,some undesirable issues of the redundant control points addition,incomplete surface definition and the difficulty of trimming boundary alteration frequently occur,when designing the car-body surface with B...  (本文共7页) 阅读全文>>

《Computer Aided Drafting,Design and Manufacturing》2013年02期
Computer Aided Drafting,Design and Manufacturing

Knot Insertion Algorithms for ECT B-spline Curves

Knot insertion algorithm is one of the most important technologies of B-spline method. By inserting a knot the local properties of B-spline curve and the control flexibility of its shape can be further improved, also the segmentation of the curve can be realized. ECT spline curve is drew by the multi-knots spline curve with associated matrix in ECT spline space; Muehlbach G and Tang Y and many others have deduced the...  (本文共7页) 阅读全文>>