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image - Detect Alpha Channel with ImageMagick
    Scenario I would like to save images with alpha transparency as .png and images without alpha transparency ... transparency using ImageMagick? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image processing - Algorithm to detect corners of paper sheet in photo
    What is the best way to detect the corners of an invoice/receipt/sheet-of-paper in a photo? This is to ... Any ideas? (source: madteckhead.com) See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Confusion with Gnuplot postscript terminal (CORRECTION : This is an issue with Mac Preview)
    I am confused about the how to get the postscript terminal to replicate a similar figure to the png terminal. Here ... edges of the png image? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - java.lang.IllegalArgumentException: Number of scaling constants does not equal the number of of color or color/alpha components
    I am writing aplha composite test app based on this example /* Create an ARGB BufferedImage */ BufferedImage img ... is appreciated :) Andrew See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Sending picture in Android (Socket Programming)
    I'm trying to receive a Picture on my Android phone from Server using socket programming.I use this code but in.read ... .SEVERE, null, ex); } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image processing - How to make a diagonal divider of zeros and ones using Matlab?
    This is the result that I want. The number of bits resolution are 256 x 256. // assign default background ... that separate zeros and ones. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Reduce number of colors and get color of a single pixel
    Using JavaFX 2.2 I need to do the following: Reduce the color of a given image (e.g. loaded using the ... code examples on this? Thanks :-) See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - How to save ID2D1Bitmap to PNG file
    I faced a problem when trying to save ID2D1Bitmap (that created from ID2D1HwndRenderTarget) to PNG File. The output ... &pStream); return hr; } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - png to bmp in C#
    is there anyway that I can convert a png to a bmp in C#? I want to download a image then convert it to a ... need to convert the png to a bmp. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Any java package to draw simple geometric shape?
    Does anyone have any suggestion about any lib/package to draw simple geometric, such as triangle, square? It can be saved into a png format. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Quality loss using ImageIO.write
    I have noticied significant quality loss using ImageIO.write, how I can disable automatic compression ? val baos: ... .toByteArray baos.close() See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image processing - Convert Vector<Point> to Mat
    I try to use the function fitLine() from OpenCV 2.1, but it's needed to convert my vector<Point> to Mat. How can i ... , 0.0, 0.01, 0.01); See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - How to send large byte arrays between activities in Android?
    I need to send byte[] data from Activity1 to Activity2, in order to writedata("FileOutputStream.write(data)") in ... to use a static variable? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Zhang-Suen thinning algorithm C#
    I am trying to write a Zhang-Suen thinning algorithm in C# following this guideline, without processing the margins ... I am doing erroneously? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - How to split an animated gif in .net?
    How do you split an animated gif into its component parts in .net? Specifically I want to load them into Image(s) ... ) gifImage.Clone(); } } } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Using VBA to change Picture
    I am trying to use VBA to automate the Change Picture function when you right click a Shape in Excel/Word/ ... any reference, can you assist? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Removing square objects
    I have the image includes circular, elipsoidal, square objects and somethings like these. I want to get only ... way to detect square objects? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - Utility of android nine patch
    I would like to know why do we use nine-patch ? I know is to shrink or stretch images but if I want to ... image editor like gimp for example ? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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468 views
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image - Loading a tga/bmp file in C++/OpenGL
    I'm trying to load a tga/bmp file. This works fine, but the end result looks like this: The image I'm trying ... an idea what I'm doing wrong? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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693 views
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image - Android Rotate Picture before saving
    I just finished my camera activity and it's wonderfully saving the data. What I do after the picture is taken: ... , data); this.finish(); See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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395 views
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image processing - By which measures should I set the size of my Gaussian filter in MATLAB?
    I'm trying to learn image processing using MATLAB and I have read about filters on images. By considering this ... filter matrix in my code? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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466 views
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image - How to determine the background color of document when there are 3 options, using c# or imagemagick
    i am currently developing an application that has to process scanned forms. One of the tasks of my ... gladly appreciated. Thanks, Erik See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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407 views
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image - Why is Cloudfront evicting objects from cache within mere hours?
    Cloudfront is configured to cache the images from our app. I found that the images were evicted from the cache ... above. How could this be? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image processing - Thinning handwritten characters in MATLAB
    I want to thin handwritten characters like shown below: Code below give my expected result: BW = imread('s.png'); ... way to do it in MATLAB? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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image - What is the best way to create a web page thumbnail?
    Is there some reasonably cross platform way to create a thumbnail image given a URL? I know there are thumbnail web ... about Windows or OS X? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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821 views
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image - JavaScript change img src attribute without jQuery
    How to change the src attribute of a HTMLImageElement in JavaScript? I need help to convert logo.attr('src','img/rm2.png ... img/rm2.png'); } }; See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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418 views
1 answer
image - Issues porting PHP/GD wrapper to Imagick
    I've recently discovered that Imagick can support color profiles and thus produce images of better quality compared to GD (see ... ) Which one should I use and what are their diff...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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507 views
1 answer
image processing - Android: BitmapFactory.decodeByteArray gives pixelated bitmap
    I am working on an Android app that displays photos which are downloaded from Flickr. I obtain a bitmap object ... crazy here? Best, Michael. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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