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Lines of Code : 56License : Non-SPDX (Apache License 2.0)
Copydef _ssim_helper(x, y, reducer, max_val, compensation=1.0, k1=0.01, k2=0.03):
r"""Helper function for computing SSIM.
SSIM estimates covariances with weighted sums. The default parameters
use a biased estimate of the covariance:
Suppose `re def adjust_contrast(images, contrast_factor):
"""Adjust contrast of RGB or grayscale images.
This is a convenience method that converts RGB images to float
representation, adjusts their contrast, and then converts them back to the
original d def stateless_random_contrast(image, lower, upper, seed):
"""Adjust the contrast of images by a random factor deterministically.
Guarantees the same results given the same `seed` independent of how many
times the function is called, and indepe Community Discussions
Trending Discussions on contrast
QUESTION
I'm making a web with react and react router.
The problem is, the pathname in useLocation() has a record of the previous page and a record of the current page.
For example, '/' on the home screen and the '/business' page on another page are contrasted together.
Also, if you refresh on the /business page and go to ‘/info’, ‘/business’ and ‘/info’ appear together.
If you look at the picture I posted above, whenever a scroll event occurs, I try to determine if the pathname (the same is the url variable) variable is ‘/’ and write logic according to the boolean value.
However, there are cases where there are two executions in the console, in the statement, with the old pathname and the current pathname.
If only url or url is taken to the console, the current result value is displayed, but the history of the previous page is also actually brought if it is suggested in the scroll event of the window.
...ANSWER
Answered 2021-Jun-13 at 01:05You may be needing the exact keyword:
When true, the active class/style will only be applied if the location is matched exactly.
QUESTION
I’m trying to make an api request from another backend (written in Node.js) to my Kirby API, but everything I try just results in ECONNREFUSED. What am I doing wrong?
...ANSWER
Answered 2021-Jun-12 at 02:23Apparently, the solution was to start Kirby using php -S 0.0.0.0:8000 instead of using php -S localhost:8000, and then reaching the API via http://0.0.0.0:8000/api instead of http://localhost:8000/api.
QUESTION
I tried to change a few lines from the original code however when I tried to run , I got error that say 'AttributeError: module 'PngImageFile' has no attribute 'shape'. However, I had no problem when running the original code. What should I do to remove this error in my modified code?
Here is the original code :
...ANSWER
Answered 2021-Jun-11 at 02:11I saw anna_phog on other portal.
Problem is because this function needs numpy array but you read image with pillow Image.open() and you have to convert img to numpy array
QUESTION
When I used ImageMagick-Q16, everything was solved. I was completely wrong.
To analyze images from anime shows., I would like to display the magnitude values obtained by the FFT.; ImageMagick's convert INPUT -fft OUTPUTworked well, but is unwieldy on Windows because it requires FFTW.
Therefore, I would like to use OpenCV to get the exact same FFT in Python as ImageMagick. Thank you very much for your help.
ANSWER
Answered 2021-Jun-10 at 03:02QUESTION
Depending upon rendering an SVG either as a whole document or as a single element shows differences in rendering.
I created a simple SVG graphic using Inkscape and want to render it using Python. I decided librsvg was the way to go. This is my SVG, saved from Inkscape as "normal SVG" (without Inkscape-specific extensions).
...ANSWER
Answered 2021-Jun-09 at 07:07The culprit is mix-blend-mode:hard-light;.
I cleaned up the SVG, reset all the translations, but the highlight kept missing. Only after setting the mix-blend-mode from hard-light to normal it reappeared.
QUESTION
I've been trying to make an altered Version of Neel, which uses Jester and adds functionality. After registering some procedures that can be conveniently called from the front-end, you start the Neel app with a macro called startApp, which has this signature:
ANSWER
Answered 2021-Jun-08 at 20:25Default arguments can be passed to macro, but for blocks it does not seem particularly pretty:
QUESTION
I understand that window functions work with set of rows called window and in contrast to aggregate functions does not change the size of the sample. But what is window? As I understand, it is a set of rows which are passed to a function.
Imagine we have a simple query:
...ANSWER
Answered 2021-Jun-08 at 03:22In SQL, a window function or analytic function is a function which uses values from one or multiple rows to return a value for each row. ... Window functions have an OVER clause; any function without an OVER clause is not a window function, but rather an aggregate or single-row (scalar) function.
A window function performs a calculation across a set of table rows that are somehow related to the current row.
QUESTION
I have been reading about this topic and my understanding is that if we annotate a parameter, Python does not erase the annotations in runtime. So in this example:
...ANSWER
Answered 2021-Jun-08 at 08:33There is no means to get function-local annotations at runtime. This has been encoded in the initial PEP and not revoked since.
PEP 562 – Syntax for Variable AnnotationsRuntime Effects of Type AnnotationsAlso the value of having annotations available locally does not offset the cost of having to create and populate the annotations dictionary on every function call. Therefore, annotations at function level are not evaluated and not stored.
The underlying issue is that function-local annotations can depend on function-local state:
QUESTION
I am trying to run a distributed computation using Dask on a AWS Fargate cluster (using dask.cloudprovider API) and I am running into the exact same issue as this question. Based on the partial answers to the linked question, and on things like this, I heavily suspect it is due to the pandas version in my worker being outdated; and indeed the
official Dask Dockerfile specifies a old-ish version of pandas.
By contrast, when I run my computation locally (using a distributed.LocalCluster) with a pandas version at 1.2.2 it works fine. Btw, it is a call to the categorize method on a Dask DataFrame that triggers the error in the Fargate cluster case.
What I would like to do as a workaround is simply to specify myself the version of pandas in the image deployed to the workers, either building a custom image myself + putting it on an image repo + have the worker use it, or through some other method. Is there a way to achieve this?
...ANSWER
Answered 2021-Jun-07 at 23:35One option that might work is to pass environment variables, such as EXTRA_CONDA_PACKAGES and EXTRA_PIP_PACKAGES, to indicate the package versions you would like to install, which it looks like should be supported by dask.cloudprovider as seen here, and also noted in the dask-docker repo you linked. They would be passed as a dict via a parameter environment.
Another option would be to build and push your own image as you mentioned, which also appears to be supported by dask.cloudprovider as indicated here. The image tag would be passed to the cluster constructor via the image parameter.
The options linked are for ECSCluster, which FargateCluster inherits from, as seen here.
QUESTION
I want to take a constant object, say {key1: 'value1', key2: value2'} as const, and convert its values into keys and use it in a new object with type {value1: number; value2: number}. I'd like to do this in a function, and I want the function to be typed correctly.
Below is the code that I'm trying to get to work. The error is happening when I try to cast a variable of type Partial to Blah. Could someone explain why it's happening, and if there's a way to do what I'm trying to do? Thanks!
ANSWER
Answered 2021-Jun-05 at 21:36Explicit return type with reduce almost always does not work, because initial values changes every iteration.
In order to make it work, it is better to overload your function:
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