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  • IMAGE WARP

    2011-04-24 22:57:09
    IMAGE WARP的相关论文一篇。 有兴趣的可以来看
  • ImageWarp

    2008-07-28 16:20:52
    两种插值算法实现图象变形
  • VTK:图片之ImageWarp

    2021-05-05 12:50:25
    VTK:图片之ImageWarpVTK:图片之ImageWarp描述代码ImageWarp.cxxCMakeLists.txt VTK:图片之ImageWarp 描述 结合成像和可视化管线以使图像在z方向上变形。所述vtkMergeFilter用于将翘曲表面与原来的颜色数据相结合...

    VTK:图片之ImageWarp

    在这里插入图片描述

    描述

    结合成像和可视化管线以使图像在z方向上变形。所述vtkMergeFilter用于将翘曲表面与原来的颜色数据相结合。

    代码

    ImageWarp.cxx

    /*
     * This example shows how to combine data from both the imaging
     *  and graphics pipelines. The vtkMergeData filter is used to
     *  merge the data from each together.
     */
    #include <vtkActor.h>
    #include <vtkBMPReader.h>
    #include <vtkCamera.h>
    #include <vtkDataSetMapper.h>
    #include <vtkImageDataGeometryFilter.h>
    #include <vtkImageLuminance.h>
    #include <vtkMergeFilter.h>
    #include <vtkNamedColors.h>
    #include <vtkNew.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkRenderer.h>
    #include <vtkWarpScalar.h>
    
    #include <array>
    #include <iomanip>
    #include <iostream>
    #include <string>
    
    int main(int argc, char* argv[])
    {
      vtkNew<vtkNamedColors> colors;
    
      if (argc < 2)
      {
        std::cout << "Usage: " << argv[0] << " fileName" << std::endl;
        std::cout << "where: fileName is the masonry.bmp file." << std::endl;
        return EXIT_FAILURE;
      }
    
      std::string fileName = argv[1];
    
      // Set the background color.
      std::array<unsigned char, 4> bkg{{60, 93, 144, 255}};
      colors->SetColor("BkgColor", bkg.data());
    
      // Read in an image and compute a luminance value-> The image is extracted
      // as a set of polygons (vtkImageDataGeometryFilter). We then will
      // warp the plane using the scalar (luminance) values.
      //
      vtkNew<vtkBMPReader> reader;
      reader->SetFileName(fileName.c_str());
      // Convert the image to a grey scale.
      vtkNew<vtkImageLuminance> luminance;
      luminance->SetInputConnection(reader->GetOutputPort());
      // Pass the data to the pipeline as polygons.
      vtkNew<vtkImageDataGeometryFilter> geometry;
      geometry->SetInputConnection(luminance->GetOutputPort());
      // Warp the data in a direction perpendicular to the image plane.
      vtkNew<vtkWarpScalar> warp;
      warp->SetInputConnection(geometry->GetOutputPort());
      warp->SetScaleFactor(-0.1);
    
      // Use vtkMergeFilter to combine the original image with the warped geometry.
      vtkNew<vtkMergeFilter> merge;
      merge->SetGeometryConnection(warp->GetOutputPort());
      merge->SetScalarsConnection(reader->GetOutputPort());
      vtkNew<vtkDataSetMapper> mapper;
      mapper->SetInputConnection(merge->GetOutputPort());
      mapper->SetScalarRange(0, 255);
      vtkNew<vtkActor> actor;
      actor->SetMapper(mapper);
    
      // Create the rendering window, renderer, and interactive renderer.
      //
      vtkNew<vtkRenderer> ren;
      vtkNew<vtkRenderWindow> renWin;
      renWin->AddRenderer(ren);
    
      vtkNew<vtkRenderWindowInteractor> iren;
      iren->SetRenderWindow(renWin);
    
      // Add the actors to the renderer, set the background and size.
      ren->AddActor(actor);
      ren->ResetCamera();
      ren->SetBackground(colors->GetColor3d("BkgColor").GetData());
      // ren->GetActiveCamera()->Azimuth(20);
      // ren->GetActiveCamera()->Elevation(30);
      // ren->ResetCameraClippingRange();
      // ren->GetActiveCamera()->Zoom(1.3);
      ren->GetActiveCamera()->SetPosition(-100, -130, 325);
      ren->GetActiveCamera()->SetFocalPoint(105, 114, -29);
      ren->GetActiveCamera()->SetViewUp(0.51, 0.54, 0.67);
      ren->ResetCameraClippingRange();
    
      renWin->SetSize(512, 512);
      renWin->SetWindowName("ImageWarp");
    
      // Render the image.
      renWin->Render();
      iren->Start();
    
      return EXIT_SUCCESS;
    }
    

    CMakeLists.txt

    cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
    
    project(ImageWarp)
    
    find_package(VTK COMPONENTS 
      vtkCommonColor
      vtkCommonCore
      vtkFiltersCore
      vtkFiltersGeneral
      vtkFiltersGeometry
      vtkIOImage
      vtkImagingColor
      vtkInteractionStyle
      vtkRenderingContextOpenGL2
      vtkRenderingCore
      vtkRenderingFreeType
      vtkRenderingGL2PSOpenGL2
      vtkRenderingOpenGL2
      QUIET
    )
    
    if (NOT VTK_FOUND)
      message("Skipping ImageWarp: ${VTK_NOT_FOUND_MESSAGE}")
      return ()
    endif()
    message (STATUS "VTK_VERSION: ${VTK_VERSION}")
    if (VTK_VERSION VERSION_LESS "8.90.0")
      # old system
      include(${VTK_USE_FILE})
      add_executable(ImageWarp MACOSX_BUNDLE ImageWarp.cxx )
      target_link_libraries(ImageWarp PRIVATE ${VTK_LIBRARIES})
    else ()
      # include all components
      add_executable(ImageWarp MACOSX_BUNDLE ImageWarp.cxx )
      target_link_libraries(ImageWarp PRIVATE ${VTK_LIBRARIES})
      # vtk_module_autoinit is needed
      vtk_module_autoinit(
        TARGETS ImageWarp
        MODULES ${VTK_LIBRARIES}
        )
    endif ()
    
    展开全文
  • imagewarp可执行文件

    2014-03-18 17:23:06
    双击imagewarp压缩文件,点击setup.exe,安装好软件。 打开arcview,在file菜单下的extension中选择imagewarp和jpeg。
  • Migrate dense image warp

    2020-11-25 21:22:36
    Note that the test of <code>_interpolate_bilinear</code> in <code>dense_image_warp</code> will fail if I use the decorator <code>tf.function</code> on it (that's why I haven't added it yet). ...
  • ImageWarp图像扭曲

    2017-12-29 09:12:31
    图象扭曲(Image Warping)是平面图形变化的一种,它可用于许多场合,如在以前介绍的火焰特效中加入扭曲效果,会使火焰更逼真(当然代码要有更高的的效率才行),如果在字幕当中加入扭曲效果,会给人一种怪异的感觉。
  • Image Warp(利用IDW RBF)

    2008-11-17 22:29:34
    运用Inverse distance-weighted interpolation method(IDW)和Radial basis function interpolation method(RBF)实现ImageWarp.
  • Implement sparse image warp

    2020-11-25 19:46:50
    <div><p>As requested in #25. <p>The main reason this is WIP is that I had to skip a handful of tests that were incompatible with eager mode. I still need to wrap my head around some of the eager ...
  • <div><p>Closes #1969. Because feeding keras symbolic tensor into <code>tf.function</code> only supports when <code>tf.config.experimental_run_functions_eagerly(True), I create a new fixture.</p><p>该...
  • <div><p>Recently we've seen that #53 is causing flaky failures in the CI. See: ...<p>Do you mind taking a look when time allows ?</p><p>该提问来源于开源项目:tensorflow/addons</p></div>
  • 点我下载jQuery Image Warp插件源代码[在线演示 ][源程序下载 ] 使用说明 需要使用jQuery 库文件和jQuery Image Warp 插件库文件   使用实例 一,包含文件部分   &lt;script type="text/...

    点我下载jQuery Image Warp插件源代码[在线演示 ][源程序下载 ]

    使用说明
    需要使用jQuery 库文件和jQuery Image Warp 插件库文件

     

    使用实例
    一,包含文件部分

     

    <script type="text/javascript" src="jquery.1.3.2.js"></script>
    <script type="text/javascript" src="jquery.imageWarp.js">
    

     

    二,HTML部分

     

    <img src="ocean.gif" class="imagewarp" style="width:200px; height:150px" />
     

    三,Javascript部分

     

    <script type="text/javascript">
    jQuery(document).ready(function($){
    $('img.imagewarp').imageWarp() ;
    })
    </script>
    

     

    如上实例,就可以实现一个图片点击扩大渐隐效果,只需要指定图片对象,使用相对简单,jQuery Image Warp插件与设置其显示参数,如下:

     

    warpfactor表示渐隐扩大的范围,默认为1.5倍
    duration表示效果持续的时间,默认为1000,毫秒级

     

    必优认为这个插件的特点在于效果实现的机制,这个是一个值得研究的,因为这种效果如果掌握可以应用于很多的点击事件中,而对于点击事件,任意一个非 独立的网页都存在,最常见的就是链接的点击,因些,把这种实现机制进行一些扩展,也许就能制作另一个非常实用的插件。

     

    点我下载jQuery Image Warp插件源代码
    http://jquerycodes.googlecode.com/files/jquery.imageWarp.rar

     

    展开全文
  • 0x00007FF7CECD5E7A 处有未经处理的异常(在 ImageWarp.exe 中): 0xC0000005: 写入位置 0x0000000000006080 时发生访问冲突。 不知道如何是好

    0x00007FF7CECD5E7A 处有未经处理的异常(在 ImageWarp.exe 中): 0xC0000005: 写入位置 0x0000000000006080 时发生访问冲突。
    不知道如何是好
    在这里插入图片描述

    展开全文
  • The tool will provide for input of a sequence of operations, will compose a single transform from the sequence, and finally will apply the transform to the input image via inverse mapping.You need to...

    Project Description:
    build a warping tool based on projective warps, which includes all of the affine and perspective warps. The tool will provide for input of a sequence of operations, will compose a single transform from the sequence, and finally will apply the transform to the input image via inverse mapping.You need to consider constructing each of the projective transformations: translate, rotate, scale, flip, shear, and perspective.
    The specifications for each transform follow. Your program should loop, reading these until the d command is input). Italics indicate floating point arguments, except for the f command, which takes integer arguments:
    r θ counter clockwise rotation about image origin, θ in degrees
    s sx sy scale (watch out for scale by 0!)
    t dx dy translate
    f xf yf flip -if xf=1 flip x coordinates, yf=1 flip ycoordinates
    h hx hy shear
    p px py perspective
    d done

    Matrix 3*3
    这里写图片描述

    Some Key Points:
    1.Forward Mapping will cause gaps(because the image maybe larger than previous one, so some of points will no value )
    2.use inverse transform.We can adjust the loop so that we do one copy for each output pixel instead of each input pixel,then we could you different interpolation ways.
    Artifacts two types:
    a.Aliasing: sampling the input image too coarsely. Occurs
    when the image is being minified!
    b.Reconstruction: using too crude a method (i.e. the psf) to
    reconstruct a pixel. Occurs when the image is magnified.
    Perspective Warping
    This form of warping stretches and squishes in different places.
    Straight lines stay straight, but not necessarily parallel.
    Example:
    example

    Result example:
    这里写图片描述

    展开全文
  • 描述: 这个函数 OPENSURF,是 SURF(加速鲁棒特征)的一个实现。 SURF 将检测图像中的地标点,并通过对(一点点)旋转、缩放和噪声具有鲁棒性的向量来描述这些点。 它可以以与获得专利的 SIFT(尺度不变特征变换)...
  • (Image warp) 是一个图像处理的快速增长的分支, 常用来处理二维几何变换,几何变换是修改像素空间关系,因此,仅仅用过滤图像的方法无法实现,这些操作包括调整,旋转,和偏移。几何转换的特征就是有一个映射函数...
  • This PR is for upgrading <a href="https://github.com/tensorflow/addons/blob/master/tensorflow_addons/image/sparse_image_warp.py"><code>sparse_image_warp.py</code></a> to support computations of tensor...
  • <div><p>I added bicubic and lanczos interpolation options to image.warp. I wanted to perform high quality image rotations and upscaling... Bilinear interpolation tends to over filter, resulting in ...
  • <p>When the flow input to the <code>dense_image_warp</code> is the Keras layer output, the model cannot be trained (eager execution is disabled). May I know whether it is the limitation of <code>dense...
  • <div><p>In your folder,image_warp function has been designed using python and tensorflow . And you still have compiled the c++ files in src/e2eflow/ops.py to compute the gradients of image_...
  • imshow : warp pil image

    2020-11-30 11:49:33
    The second fails when trying to warp a PIL image. <pre><code> python import StringIO import urllib import matplotlib.pyplot as plt import numpy as np import numpy.ma as ma from PIL import Image, ...
  • ] New Image addition and the changes conform to the <a href="https://github.com/tensorflow/addons/blob/master/tensorflow_addons/image/README.md#contribution-guidelines">image op contribution ...
  • WIP: Warp image algo

    2021-01-01 21:28:08
    <div><p>This is work in progress, posted for discussion</p><p>该提问来源于开源项目:Kitware/kwiver</p></div>
  • t find your code about how to warp an image with the optical flow, I would appreciate it if tell me. And I tried to warp the image with warped(:, :, i, j) = interp2(Xi, Yi, imgs(:, :, i, j), curX...
  • <div><p>Not sure how to utilize Dense warp flow operation. I know there is a Dual_TVL1 function in cv, but is there something similar in tensorflow that I can utilize? <p>Thank you </p><p>该提问来源...
  • About the warp_ref_image

    2020-12-30 07:48:48
    t this mean that, in case my image isn't scaled equaly in x and y direction, the camera intrinsic matrix is scaled incorrectly or is this addressed somewhere else? <p>Thanks for your time and ...
  • <code>map.warpimage()</code> calls the default background, downloading it from NASA. <pre><code> # Works from mpl_toolkits.basemap import Basemap import matplotlib.pyplot as plt m = Basemap...
  • <div><p>When switching to OpenMP, the column pointer was computed in the loop for each row rather than incremented, but the computed pointer did not account for the starting row, which is not always ...
  • Files: warp_test.tif Size is 256, 256 Coordinate System is: PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",...
  • Conv2Warp: An unsupervised deformable image registration with continuous convolution and warping 作者信息:Sharib Ali , Oxford,Institute of Biomedical Engineering 贡献: 使用可变形卷积学习局部非...
  • <p><img alt="image" src="https://user-images.githubusercontent.com/6990224/32148563-f65b80aa-bcf0-11e7-886f-fc53f1901811.png" /></p> <p>Fixed an obscure bug in the warp scramble effect too. I would ...

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