Questions tagged [imageprocessing]
Image processing is any form of signal processing for which the input is an image, such as a photograph or video frame; the output of image processing may be either an image or a set of characteristics or parameters related to the image.
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Interfacing with MIPI CSI-2 camera sensors like the Omnivision OV2732?
CSI-2 is used in pretty much every smartphone however I'm struggling to find much information on how most companies receive and control CSI-2 sensors. I understand there are NDAs. This is not for a ...
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Amorphous Silica Electrical Impedance Tomography
I would like to see if the idea I have for an experiment is even worth the effort and money to perform. I would like to use electrical impedance tomography to image a developed thin layer ...
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Interpreting Fourier transform of Images
I'm new to image processing and am learning about the Fourier transform. I've read that FT decomposes a function to its constituent frequencies. However, I'm not sure how to tell which is a low ...
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DE10-Lite VGA Controller Display
this is my design: https://github.com/Shehab-Hesham/FPGA_IP_VGA/tree/main.
On an oscilloscope, the vertical sync and horizontal sync are correctly given as output; however, the color channels output 0 ...
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Image downsampling by a fraction
I need to downsample an image (bitmap image of a Spectrogram) by a fraction, N/D, (rational: ex 4/5). I understand that this can be done with resampling by 4 followed by decimation by 5. If this is ...
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Reduction of Butterworth low pass filter to ideal low pass filter and gaussian lowpass filter
While studying frequency domain filtering in computer vision, i came across this topic where the Butterworth low pass filter reduces to ideal low pass filer for large value of n and also reduces to ...
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What does an .ngc file do in Xilinx ISE?
A couple days ago we were given our last project assignment at the HDL course at my uni. Among the files provided was a .ngc file and we were told to place it inside the project folder. It is supposed ...
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Interfacing AR0237 to CYUSB3014
I'm currently creating a RGB+IR webcam application using the CYUSB3014 from Infineon with the AR0237 from OnSemi. After a bit of fiddling around with the help of the AN75779 from Infineon and the ...
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vivado HLS or SDsoc for use openCV
I want to do an image processing by openCV on FPGA . But I do not know if I should use the SDsoc method or the vivadoHLS method. The size of the images I am going to process is large and I want to ...
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Converting Radiant Energy to ADC Voltage
I am working on a camera sensor and was trying to get a rough estimate on if a given camera module has enough dynamic range. Fortunately I know the target and illumination source. The dynamic range I ...
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Synchronize IR sensor output and HDMI (FPGA)
I'm having problems when trying to synchronize output from IR camera and hdmi transmitter.
I use cyclone FPGA and ulis IR sensor, for describing how I use Verilog.
Sensor frame rate is 60 fps, same ...
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How to crop/resize images in video stream on frame grabber with FPGA?
I am attempting to simply crop or resize the images as they are streamed to the frame grabber using the FPGA onboard this Euresys Coaxlink Quad CXP-12 frame grabber. The frame grabber has an XCKU035 ...
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How do I find the coefficients to know if this color combination is realizable? What am I doing wrong in my solution?
I tried to solve the following problem:
Part A was solved without any problem, however with part B there is a problem:
Second the digital signal processing, to be more specific, image processing, I ...
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Advice needed for a final year project on wheelchair automation and control
My project partners and I have been trying to design a wheelchair for people with neuro-degenerative diseases. I know this has been done in the past, however we are using a different approach. We are ...
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Rolling shutter effect simulation on matlab
Hi I'm doing a simulation of the rolling shutter effect on matlab,
in this case the image of the propeller is distorted, and I tried use a DC motor to simulate the plane's engine at home and filmed ...
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Recommendation of actuator
I had posted about my project earlier in this forum:
PID algorithm implementation using computer vision
Now I am currently stuck in a stage whether I am concerned whether I chose the wrong actuator.
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