Hi Andre Sorry for late reply to forum, I have tried the link that you have posted, but some how it didn't recognize the CA license plate from input image, so I gave up on this one. It says that this application is for European LP. I have changed the ratio to resemble to CA LP ratio, but it was not finding anything. First, I was very excited when I found this open source, but soon I realized this need a lot of work to work with CA LP. My application is not for commercial, I am using this for my university project, so my first goal is to get an application that works on CA LP, once it works, I will definitely spend more time to improve the performance.
Zia On Aug 1, 6:28 pm, Andres <[email protected]> wrote: > 2010/8/1 ZIA <[email protected]> > > > Thanks Andre for finding the font. I will see how can i use that. As > > you suggested using coreldraw, i don't have this software, i will try > > to see if i can use some other software like MS word. > > You are welcome. > Things will be very hard with MS Word. Try better to get Corel or something > like it. > > > I was asking how to extract license plate from image. What I am doing, > > i get the image, re-sized, convert to binary image and then run the > > sobel edge filter. So now i have an image that shows me the rectangle > > part of LP clearly, and I know the ration of height to width is 1 to > > 2. I just need to scan the image and look for rectangle and calculate > > their ration, to get the correct LP from image, or is there any other > > more efficient way. I hope this clear things, if not, I will send you > > the image as input image and after edge filter image. > > > Sobel filter can be just for preprocessing. It doesn't give you any > > identification on the graphic objects. I thought that you already resolved > that part. > > A good algorithm for finding the plate is a very hard thing to do, I'm > working on mine from several years ago. > > If you don't need it for commercial purposes (in terms of speed, accuracy, > light conditions, etc.) here you have the source code of what you need. It's > in C# (if I remember correctly, you work in C#), and it uses Tesseract. The > whole project is a single file of 173 lines and it works. > > http://www.emgu.com/wiki/index.php/License_Plate_Recognition_in_CSharp > > What's your situation ? > > Zia > > > > > On Jul 31, 9:10 pm, Andres <[email protected]> wrote: > > > > Anyway, any of you have any idea, about scanning image and getting the > > > >> LP (image was filtered using edge filter, i can see the rectangle box > > > >> of LP, just need to figure out, how to scan and how to extract. The > > > >> ratio of CA LP is 1 to 2, or 6 to 12 inches (height=6, width=12) > > > > >> I'm not sure about being understanding completelly. Could you extend > > a > > > > little ? > > > -- > > You received this message because you are subscribed to the Google Groups > > "tesseract-ocr" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<tesseract-ocr%[email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/tesseract-ocr?hl=en. -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en.
