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Questions tagged [image-quality]

113 questions
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OpenGL ES 2.0 Losing Image Quality

I followed along with this tutorial (http://www.bit-101.com/blog/?p=1861) and noticed that upon saving the same image multiple times, the quality slowly degraded. Aside from the memory leaks, what's going wrong here? It should be pulling 4 bytes…
Matisse VerDuyn
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Large image blurs on feed dialog

I am using a URL of an image which is 160x368 in dimension. The URL I am getting is from a web-service and is used at many places in my and some other applications too, so I can't change it. I am passing this URL to the parameter of feed dialog as…
0xC0DED00D
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how to calculate noise denisty per square inch in black and white image in c#

I need to calculate noise density per square inch in a black and white image. I tried to convert the black and white image to grayscale and calculate the mean and standard deviation for each pixel, but I always get 0. I don't know what's wrong in my…
Ereny Magdy
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the input array must have size 3 along `channel_axis`, got (1169, 827) - BRISQUE SCORE

Currently I working on BRISQUE score to check of quality of a image. Below is what I tried. from PIL import Image from skimage import io,img_as_float import imquality.brisque as brisque img = Image.open('/content/page_0.jpg') score =…
Bhagya Shree
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Why the structural similarity index measure decreases with decreasing image resolution?

I computed the structural similarity index (SSIM) value between a ground truth mask and its corresponding predicted mask in an image segmentation task using a UNet model. Both the ground truth and predicted masks are of 1024 x 1024 resolution. I got…
shiva
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Image Quality decreases when drawn on HTML5 Canvas - Next JS

I'm drawing an image uploaded by the user on an HTML5 canvas of fixed height and width which can be dragged and resized via mouse.Now I am preserving the aspect ratio of the image with the help of the following draw function. if(image){ …
Sounav Saha
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Recieving POST data and converting to base64 produces qualityloss

Im sending in data through post and get a png back in the response. Convert it to base64 so i dont have to save the file. The image is a qr code and it seems to suffer from some quality loss since iPhones cant seem to scan it, androids are fine. Ive…
Jimmy
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How to export a flextable table from r as a good quality interactive table

I have this dataframe df = data.frame(x = 1:20, y = 2:21, z = 3:22) and when applying flextable and exporting the image I have this result : flextable(df) I don't know how to export it as a complete table, interactive and in a good…
Anas116
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Selling product in Turkey

We would like to expand our market in Turkey, considering that our current distributor is not exclusive, is there any other limitation we can encounter/parameter we should check to be sure we will not get any obstacle in selling and shipping product…
Michela
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Arducam libcamera low quality in low resolution video/images

I'm trying to use the Arducam libcamera to get video from my Arducam 16 MP Autofocus camera on a Raspberry Pi 4, but I'm running into the issue that the quality is very low when retrieving 1920x1080 video (and images). In fact using any other…
Robin
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Kivy: Quality of images

i have programmed a little a Kivy/Python-program that opens an image and displays it. But it can cleary be seen, that there is a drop in image quality 2, when compared to the original image1. So i am wondering why this is the case. Is this normal…
Nortatap
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Tkinter Button Image Quality Bad

I'm making a tkinter app and the image I've assigned to the button appears low quality, even though the image is actually crisp and isn't in as bad quality. Is there any way to fix this? The red and blue buttons are in bad quality
Flashsloth
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Bitmap is lost the quality of image when getting from the storage of android

I am facing issue with Bitmap image quality when getting a image file from internal storage and show on imageView. How to show image file with original quality using bitmap. Here is my code fun renderPdf(renderer: PdfRenderer, pagesBitmap:…
Mohammad Zeeshan
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Detect if an image it's been overly compressed

I want to determine if an image has been overly compressed and thus if it contains those pixelated artifacts you can see clearly, for example, in the upper right portion of the image below. In the following comparison there are two JPEG images, the…
zangarmarsh
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R packages for MS-SSIM?

I wanted to do some simple image comparisons with R (the reason I am not using python is that the workflow is in R). I tried to search for ms-ssim implementations in packages in R, but did find any except for spatialcompare::msssim. However, as I…
user48867
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