I want show large image in Matlab gui, but when show my image not clearly and not possible for read. for example show my image in Matlab in follow.
Any way show my image like this image?
I know can use zoom in and zoom out, but image in first should clearly.
You can use InitialMagnification to preview the image at your native resolution. If your concern is getting a nice looking zoomed-out image, you can try using reduce parameter of imshow to sub sample it.
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I only found a way to see the initial image (non-resized one) and then this image got cropped somewhere inside Vision to match input resolution for my .mlmodel. How can I see that cropped version (I capture these images from my camera)?
I use this this crop option: VNImageCropAndScaleOptionCenterCrop = 0 (I believe it doesn't matter though).
You could create a model that doesn't do anything with the image, and then look at the output image that is generated by Vision.
I have this poster image:
I have to blend it with another image. I have to put this image on a picture of a building like this:
The rotated poster image has white pixels that I don't know how to get rid of.
Can someone please help me with code to paste this image on the building image? The front of the building.
Firstly find the four corner points of building where you want to blend image. Also find four corner points of your poster. Then use perspective transform and warpaffine to paste poster on image.
This http://www.learnopencv.com/homography-examples-using-opencv-python-c/ link may help you to get the idea but it is using OpenCV.
I have tried this using OpenCV C++ and I am getting following image after applying perspective transform. Let me know if you want this kind of results:
I'm the beginner of image processing by using MATLAB and i have to do some tasks, i want to crop or cut for the specific area like using imcrop but want to make it automatic (i cannot upload picture because i'm the new user, the picture that i use is the cross-section of a plant) i really don't know how to detect and cut out only that area. I'll really appreciate if there's someone can help me to figure out this problem.
You need to give us more information. If you want to automate the detection of a part of an image to crop it, you need to do some image processing. What kind will depend on the characteristics of your images and the part you want to crop.
You can post an image using, for example, http://www.postimage.org/
i am converting the image into thumbnail format and sending it to server and i want to convert it back to original size while receiving can any one please tell me how to resize the image to original without loosing quality.....
i tried directly to displaying the image in image view but the quality of the image is missing ...
can any one please help me how to maintain the quality of the image .......
Downscaling is irreversible, some information lost forever.
What you're asking isn't possible. You can't enlarge an image while maintaining the same quality. If you think about an image as a mapped array of pixels (literally, a "bit-map"), this makes sense. The image is saved with a fixed amount of data, and that's all you have to work with when you resize it. Any examples to the contrary (like TV shows) are purely fictional.
Investigate using vector graphics instead, which can be resized at will without a loss of quality.
you simply can not convert an image from thumbnail to original size and retain the quality it had in its original size.
if you want to display the image full-size, you have to send the full-size image.
You could think about using a Vector image? They do not lose quality when resized. But I have no clue whether you can use them for thumbnails in iOS.
See this wiki page for more info about Vector graphics.
I am working on module where I need to perform following activities.
Select image from Library.
Show that image.
Zoom that image.
Save the Zoomed portion or visible portion on the view.so that final image will get saved with zoomed.
I have covered 1,2,3 and struggling with 4
Does anyone have idea about this?
Thanks,
Sagar
If I understand you correctly, you want to save image that appears on the screen after zooming? To do that you can use CGImageCreateWithImageInRect function.