From: Fei L. <fe...@te...> - 2004-01-27 16:02:19
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Hi, I noticed that in the maillist of VXL people mentioned VTK several = times. Who can tell their common and difference briefly? I have a job to do standard image processing like load, create, change = and save image. filter and convolve image, do statistics histogram on = image, visual enhance for a image. Which package is better for me? Later I will expend my task to object detection on a image. Which is = better for that? Thanks Fei Li |
From: Ian S. <ian...@st...> - 2004-01-27 16:22:23
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Briefly: VTK is a visualisation toolkit. It helps you go from semantic descriptions to images. It is very rich in functionality. VXL is a set of computer vision libraries. It helps you go from images to semantic descriptions. It has a certain sparseness both by design, and because functionality is usually only available when a developer has their own need for it. VTK is maintained by one commercial company, VXL by volunteers (some of whom work for commercial companies). VXL has much more general numerical support than VTK. VTK has more image processing support, although I believe it is a little less general. People use VXL for object detection research. For more detail read the VXL and VTK books. Ian. -----Original Message----- From: vxl...@li... [mailto:vxl...@li...]On Behalf Of Fei Li Sent: Monday, January 26, 2004 5:55 PM To: vxl...@li... Subject: [Vxl-users] VXL or VTK Hi, I noticed that in the maillist of VXL people mentioned VTK several times. Who can tell their common and difference briefly? I have a job to do standard image processing like load, create, change and save image. filter and convolve image, do statistics histogram on image, visual enhance for a image. Which package is better for me? Later I will expend my task to object detection on a image. Which is better for that? Thanks Fei Li |
From: Fei L. <fe...@te...> - 2004-01-29 19:26:55
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Thanks Ian, I have tried VTK examples and I could only see 3D examples but I am only = interested in 2d image processing. Are you sure VTK is better package = for 2D image processing? Thanks ----- Original Message -----=20 From: Ian Scott=20 To: 'Fei Li'=20 Cc: Vxl-Users (E-mail)=20 Sent: Tuesday, January 27, 2004 8:22 AM Subject: RE: [Vxl-users] VXL or VTK Briefly: VTK is a visualisation toolkit. It helps you go from semantic = descriptions to images. It is very rich in functionality. VXL is a set of computer vision libraries. It helps you go from images = to semantic descriptions. It has a certain sparseness both by design, = and because functionality is usually only available when a developer has = their own need for it. VTK is maintained by one commercial company, VXL by volunteers (some = of whom work for commercial companies). VXL has much more general numerical support than VTK. VTK has more = image processing support, although I believe it is a little less = general. People use VXL for object detection research. For more detail read the VXL and VTK books. Ian. -----Original Message----- From: vxl...@li... = [mailto:vxl...@li...]On Behalf Of Fei Li Sent: Monday, January 26, 2004 5:55 PM To: vxl...@li... Subject: [Vxl-users] VXL or VTK Hi, I noticed that in the maillist of VXL people mentioned VTK several = times. Who can tell their common and difference briefly? I have a job to do standard image processing like load, create, = change and save image. filter and convolve image, do statistics = histogram on image, visual enhance for a image. Which package is better = for me? Later I will expend my task to object detection on a image. Which is = better for that? Thanks Fei Li |
From: Ian S. <ian...@st...> - 2004-01-28 09:54:54
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> I have tried VTK examples and I could only see > 3D examples but I am only interested in 2d image > processing. Are you sure VTK is better package > for 2D image processing? No, I haven't seen VTK used for 2D image processing. As I said read the book for more details. BTW, please use text format, not HTML, on this list. Like most public mailing lists some recipients use text-only mail programs. Ian. ----- Original Message ----- From: Ian Scott To: 'Fei Li' Cc: Vxl-Users (E-mail) Sent: Tuesday, January 27, 2004 8:22 AM Subject: RE: [Vxl-users] VXL or VTK Briefly: VTK is a visualisation toolkit. It helps you go from semantic descriptions to images. It is very rich in functionality. VXL is a set of computer vision libraries. It helps you go from images to semantic descriptions. It has a certain sparseness both by design, and because functionality is usually only available when a developer has their own need for it. VTK is maintained by one commercial company, VXL by volunteers (some of whom work for commercial companies). VXL has much more general numerical support than VTK. VTK has more image processing support, although I believe it is a little less general. People use VXL for object detection research. For more detail read the VXL and VTK books. Ian. -----Original Message----- From: vxl...@li... [mailto:vxl...@li...]On Behalf Of Fei Li Sent: Monday, January 26, 2004 5:55 PM To: vxl...@li... Subject: [Vxl-users] VXL or VTK Hi, I noticed that in the maillist of VXL people mentioned VTK several times. Who can tell their common and difference briefly? I have a job to do standard image processing like load, create, change and save image. filter and convolve image, do statistics histogram on image, visual enhance for a image. Which package is better for me? Later I will expend my task to object detection on a image. Which is better for that? Thanks Fei Li |
From: Bill O. <billo@Radix.Net> - 2004-01-28 13:03:56
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On Wed, 28 Jan 2004, Ian Scott wrote: > > I have tried VTK examples and I could only see > > 3D examples but I am only interested in 2d image > > processing. Are you sure VTK is better package > > for 2D image processing? > > No, I haven't seen VTK used for 2D image processing. As I said read the book > for more details. > > BTW, please use text format, not HTML, on this list. Like most public > mailing lists some recipients use text-only mail programs. > > Ian. I used vxl and vtk together at my previous place of employment. The two packages are somewhat complementary. I had learned vtk first, and so was comfortable with using it for throwing up display windows and, with the tcl/tk wrapper, easy guis. Thus, I used vtk as a front end, and vxl in the back end for both two- and three-d imagery. A third package that fits in well here (though the learning curve was a hassle) is itk from the nlm. ITK is funded and managed through the National Library of Medicine, but maintained through kitware, just like vtk. I also used vxl in conjunction with AVS/Express, and it worked well. billo |