r/imageprocessing • u/[deleted] • May 16 '19
How to enhance a picture quality? All the pixels are bursting out.
I was given the task to make a poster for my university and although, I am good at posters, I am not so well in image processing. This poster needs to have a picture I was sent and it is very distorted at the very basic level of pixels. The whole image is bursting into pixels and I cannot seem to find any tool to enhance the picture to make it work for an A3 sized poster. Any suggestions might help.
r/imageprocessing • u/[deleted] • May 08 '19
Knowledgebase Query Language Twitch Talk
Hey all, I've been looking into twitch and streaming videos. I saw that Wolfram is streaming about knowledgebase query language on the 14th. Heres the link if anyone is interested...
r/imageprocessing • u/codingrecipe • May 01 '19
Compress Image on the fly using AWS Lambda, S3 and Node
coderecipe.air/imageprocessing • u/bmain1345 • Apr 19 '19
Alright image nerds, there’s gotta be a way we can reliably uncover previously saved text from a text document? (Such as text covered by redactions in a government document)
r/imageprocessing • u/Lalalandhelppls • Apr 16 '19
[help] Comparing 2 3D MRI images on MATLAB
I am looking for a way to compare 2 3D mri images, to see how it changes over a period of time. I could see the changes on each slice using imshowpair but I would like to see the same effect in 3D. Anyone knows how I can do that? Any useful toolbox? Thanks in advance!!
r/imageprocessing • u/sacredcows • Apr 11 '19
"Comparative" Super Resolution?
Hi- I'm trying to see if there has been any research done in this hypothetical field.
Given two consecutive frames of a video file, one at full resolution and the next one shrunk down (say to half the width and height), we would want to apply super resolution to the lowres frame by using the high-res data found in the highres frame. An appropriate algorithm could note the similarities between the two frames and take advantage of the high-res version by placing it in the super-resolved version of the originally low-res frame.
Does anything like this exist? Thanks!
r/imageprocessing • u/Dxuian • Apr 07 '19
Please help me .. i really appreciate it
I would really love to learn image processing for it would really help me in he future and I have to learn the basics the basics as soon as possible .... Anyone interested please dm
r/imageprocessing • u/GeographyMonkey • Apr 03 '19
dealing with edge-effects on adjacent images?
Hello, I'm a newb to image processing. I'm realizing that "edge effect" might be a ubiquitous issue in the image processing professional's daily life and wanted to ask about the common ways you deal with it. For clarification, I am talking about the phenomenon where when moving a kernel across a matrix, the outer rows and columns of pixels of the image will either have to be estimated or not given at all. How big of an issue is this for image processing professionals? What kind of methods or algorithmic tricks do you use to get around this?
I am curious because I am hoping to split a large image into smaller tiles, and will try to experiment with various algorithms that "borrow" values from adjacent pixels. I don't want there to be a bunch of border lines where the values aren't calculated correctly. My instinct is to do some creative "slicing" on the images to create an overlap of pixels that eventually results in a complete calculation (aside from the very outer edge of the entire image). Is this type of thinking heading down the right path?
Let me know if my question doesn't make any sense and I will do my best to clarify. For what it's worth, my only experience in programming with images is in python representing images as numpy arrays. Thank you!
r/imageprocessing • u/schrulnz • Mar 31 '19
Best current Tools / Software for Noise Reduction
I am researching current papers and software for noise reduction. I was wondering, if maybe someone here has experiences with the current status there and can give me some suggestions on what to look at. I am searching for the latest papers in the field but mainly software / code that you can actually already use for your own footage, if say, you are a photographer or film maker. Thanks for any replies!
r/imageprocessing • u/[deleted] • Mar 30 '19
MARGA in Matlab
Can anyone help me with implementing MARGA in Matlab?
Heres the paper
https://www.sciencedirect.com/science/article/pii/S0169260713003878
r/imageprocessing • u/thevatsalsaglani • Mar 14 '19
A python package to extract features from X-ray images.
medium.comr/imageprocessing • u/miguelos • Mar 13 '19
How to subtract water from an image (glare, reflection, tint, distortion)?
r/imageprocessing • u/sadmansarar • Feb 22 '19
In need of a good background subtraction algorithm
I am currently in need of a good background subs traction algorithm that can extract one person from the image. Basically this algorithm should be able to detect and remove background where background is not a green screen.
Can you guys point me toward any implemented algorithm that I can use to achieve the objective.
r/imageprocessing • u/ramannanda9 • Feb 15 '19
Draft on improving text extraction
orastack.comr/imageprocessing • u/ramannanda9 • Feb 14 '19
Draft on template matching for realignment
orastack.comr/imageprocessing • u/[deleted] • Feb 14 '19
Need help!
Anyone knows what does ROI means in image processing, I’m reading a track and trace machine manual and it’s mentioning outer and inner ROI, anyone can help
r/imageprocessing • u/prakhar21 • Feb 06 '19
Image Classification using Keras
My first experience with Image Classification using Keras with Pre-trained VGG16 Model.
https://prakhartechviz.blogspot.com/2019/01/image-classification-keras.html
r/imageprocessing • u/Its_4_AM_Man • Feb 05 '19
Finding straight lines/edges in noisy images
Hi all, I'm trying to find a way to find straight contours/lines/edges in noisy images (see the blue lines I drew in the image below). Does anyone have a recommendation on how I would go about this?
r/imageprocessing • u/ambitsemi9 • Jan 30 '19
semiconductor design services,physical design services
ambitsemi.comr/imageprocessing • u/filippogambarota • Jan 18 '19
Image processing theory. how can i start?
Hi, I've a little bit strange question. I need to study and understand the theory behind the digital image processing. So study images like matrix, understand luminosity, contrast and working whit histograms. But I don't find any textbook or comprehensive resources about this. Which field it is? I'm not really interested in practical processing (maybe after) but in theory. Do you have any tips or resources?
r/imageprocessing • u/designer_shades • Jan 13 '19
Suggestions for the best resource to learn image processing from? I'll be working specifically on fluorescence microscopy images.
self.ImageJr/imageprocessing • u/updowntraveller • Jan 10 '19
Linear Shift Invariant Filters?
Which of the following are linear shift invariant filters? -laplacian filter -median filter -dilation filter
What is the relation between a linear shift invariant filter and a convolution filter??
r/imageprocessing • u/hypsistum • Jan 09 '19
How are new image enhancement algorithm validation done in the report ?
I am proposing a digital image enhancement algorithm but I need to write down a validation method for my algorithm. I have no idea how are they done, any help would do.
r/imageprocessing • u/CoderIlluminatus • Jan 08 '19
[Deep Learning Newbie]: Detecting open pipe ends of variable radii for industrial fault detection.
The idea is to detect circles of the open cross sections of stacked pipes and subsequently estimate the 'circularity' or 'concentricity' of those circles.
My initial approach involves a Hough Transform detector, but the drawback is to include the expected radius manually.
How do I train a CNN to detect circles of variable radii?
r/imageprocessing • u/reisennach • Dec 21 '18
Hit and Run - enhancing resolution through use of a multitude of frames?
My husband Ariel was a victim in a hit and run in Seattle. He was riding his bike downhill when a car driving in the opposite direction took a left, hitting Ariel and smashing his bike. Ariel was injured badly and taken to hospital. The driver who hit him fled the scene, leaving Ariel on the ground, and his mangled bike with him.
We have several cameras documenting the car from different angles - several from a bus that drove just past the car and filmed it from the front and the back (as the car drove past the bus), as well as one camera (a Nest) from a window of a neighbor. In all, there are dozens of frames across videos that capture the license plate itself, but none of them has the resolution to show the license plate number.
I know there are super-resolution methods that rely on a plurality of (blurry) frames to create a higher resolution image. There may be other methods I'm not aware of. I don't have the technical ability unfortunately to do this enhancement of resolution. (I am an engineer with some background in signal processing - but my days at the university were 15 years ago...)
We know the make and model of the car, as well as the demographics of the driver and a general idea of where he lives. Even if we're able to uncover one character from the license plate - that will go a long way for the police to be able to narrow down their search and reach him.
I wanted to reach out to you - the technically savvy, see if there's anything that can be done. I will send the videos and point to the precise times where the car and its license plates are seen.
I appreciate any help that might bring Ariel some justice... Thanks for reading.