Brighter | A framework for building messaging apps with .NET and C | Microservice library
kandi X-RAY | Brighter Summary
kandi X-RAY | Brighter Summary
When implementing a clean architecture (ports & adapters), one question is how to implement the interactor or port layer (sometimes called a mediator). When integrating two microservices using messaging, one question is how to abstract from the developer the code that sends and receives messages in favor of writing domain code.
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Lines of Code : 61License : Non-SPDX (Apache License 2.0)
Copydef adjust_gamma(image, gamma=1, gain=1):
"""Performs [Gamma Correction](http://en.wikipedia.org/wiki/Gamma_correction).
on the input image.
Also known as Power Law Transform. This function converts the
input images at first to float repres Community Discussions
Trending Discussions on Brighter
QUESTION
Say I have a uint8 pixel value as [23 21 15]. I want to multiply the pixel by 12 to see it brighter. When multiplied with 12, the resultant RGB values for this pixel is [20 252 180]. But the result should be indeed [276 252 180]. RGB accepts at most 255 so 276-256=20 is written there. Apparently 20 is darker than 255 and 23. Doesn't this cause information loss on the first red channel? How can I avoid this when multiplying a RGB value with a constant?
...ANSWER
Answered 2021-Jun-13 at 11:32You are right, on overflow, the color components (r, g, b) are reduced to the least significant byte. It is like You would perform a "modulo 256" operation.
You can do 2 things:
Retrieve the maximum color component value from all the pixels that you want to process, then fix the maximum multiplier in such a way, that the product does not exceed 255. This would be the solution to keep the overall aspect, it is lossless and reversible.
Use the min function:
QUESTION
I am trying to blur of highest variance point from the image. I wrote code below. 1st part finds the variance of the image. I checked the resultant variance of an image and it is correct. (I used Lena's image) In 2nd part, I find the highest variance coordinates and send to this Function which finds gaussian blur. When I execute this code, it throws "C:\Tmp\blur_highest_variance.py", line 66, in sigma=15) numpy.core._exceptions.UFuncTypeError: Cannot cast ufunc 'subtract' output from dtype('float64') to dtype('uint8') with casting rule 'same_kind'
I tried a few conversions between types but no avail. Can you show me some direction?
ANSWER
Answered 2021-Jun-10 at 18:48The error message tells us the line and the reason for the error:
Traceback (most recent call last):
File "C:\Tmp\blur_highest_variance.py", line 66, in sigma=15)
numpy.core._exceptions.UFuncTypeError: Cannot cast ufunc 'subtract' output from dtype('float64') to dtype('uint8') with casting rule 'same_kind'
It is more simple to debug the code using intermediate variables:
For example, use an intermediate named gmask:
QUESTION
I am learning how to control P10 Led matrix 64x32 with NodeModule MCU ESP8266, I google and found this library https://github.com/2dom/PxMatrix and this tutorial https://www.instructables.com/RGB-LED-Matrix-With-an-ESP8266/. I believed that I wire between P10 and ESP8266 in true way in the tutorial, but that P10 led does not display as the example:
The true result will be:
This is my wire diagram:
This is my code:
...ANSWER
Answered 2021-Jun-10 at 09:17I fixed this by adding
display.setPanelsWidth(2);
display.setMuxPattern(SHIFTREG_ABC_BIN_DE);
because my led is combined by 2 matrix 32x16.
QUESTION
I am using a ListView.Builder to display my data to the screen which is working very fine, then I implemented the Dismiss and onDismiss function which seem to be working fine but it I try to dismiss item-A it will dismiss it from the screen but on the showSnackBar its displaying that Item-Z was deleted, if I deleted item-B it still gives me the name of of item-Z on the showSnackBar, I added more items to the data List which made item-Z now item-X but if I swipe its still shows me that the new item-Z has been deleted, then I tried deleting the Last Item which is the item-Z and it gave me an error
[. Exception caught by animation library ═════════════════════════════════ The following RangeError was thrown while notifying listeners for AnimationController: RangeError (index): Invalid value: Not in inclusive range 0..3: 4
When the exception was thrown, this was the stack #0 List.[] (dart:core-patch/growable_array.dart:177:60) #1 _ListsState.build.. package:another_test/list_widget.dart:81. ]
this is the code down bellow
...ANSWER
Answered 2021-Apr-18 at 03:32Snackbar is trying to get the name, but the item is already deleted by that time. The solution would be to get the title name before the item is deleted from the list.
Change onDismissed to this:
QUESTION
I'm trying to stitch two pre-warped images together seamlessly using multi-band blending. I have two input images (that have already been warped) and one mask. However, when I apply MBB, the area surrounding the seams glow brighter and as a result, they become more visible which is the opposite of the objective here. I have absolutely no idea what I'm doing wrong.
To better explain the problem, here are the images and the output:
Target:
Source:
Mask:
And once I blend the source image into the target, this is what I get:
Here's my code for reference:
...ANSWER
Answered 2021-Jun-03 at 17:30here's a C++ answer, but the algorithm is easy.
QUESTION
In Android, is there any way to give an ActionMode the same appearance as the normal Toolbar? Currently my ActionMode looks different to the Toolbar in that the background is slightly brighter (at least using Theme.AppCompat.NoActionBar), the MenuItems are fully black/white (depending on the theme) instead of colorControlNormal (which I set them to) and most annoyingly, there is an underline under the ActionMode that I can't seem to get rid of. Instead, I'm trying to make the ActionMode indistinguishable from the Toolbar.
The Toolbar (also what the ActionMode is meant to look like):
What the ActionMode currently looks like:
Any help would be highly appreciated!
...ANSWER
Answered 2021-May-02 at 09:12- For changing the background color of
ActionMode& Remove the bottom line. You can useactionModeStylewhere you can setbackgroundto your desired color. - For changing the icon color you can set
colorControlNormalinside theactionBarTheme.
So your theme would look like this:
QUESTION
I am new to flutter so I was trying to build a scrollable listtile objects. So after building it I tried to make the iconbutton change color when onpressed which works but when I press a single button it changes the colors of all the items. I guess it has to do with assigning a unique id/key to each of the items but am not sure if thats the issue or even how to do that. The code is below:
...ANSWER
Answered 2021-Apr-14 at 19:30That's because you only have one color variable assigned to all the items in your list; if that variable changes, all items changes too.
There are diffrent ways how to solve this; one possible solution would be to add another property to your 'itemlists' object:
QUESTION
I am trying this sidebar of a dashboard and it looks like this
The top child or the one with the brighter green color on it has a class active_link which basically tells you that you are in this part of the dashboard. So the idea is that I want the class active link to be added to the certain element that I have clicked upon while the rest who are not clicked don't have (Meaning that if the element already have the active_link but it is not the one that I have clicked upon then the class will be removed however if it does not have the active_link class and it is the one I clicked it will be added to that certain element). However, I have a problem.I tried running this code:
ANSWER
Answered 2021-Apr-16 at 05:10You can simply use $(".sidebar_link").not($(this)).removeClass("active_link") to remove class from other sidebar which is not been clicked by user.
Demo Code :
QUESTION
I created 3 list items to display using ListView.builder... but after coding the listView is displaying 1 item 3 times, then i added more items to the list making it a total of 5 items, then i discovered it started displaying each item 5 times before displaying the next item and i also noticed it is not scrollable
bellow is the code
...ANSWER
Answered 2021-Apr-15 at 19:20You were using map function to make multiple ListView.builders, this is the solution:
QUESTION
The plane grid consists of lines, with brighter dots where lines intersect. I would like to introduce an alpha gradient on the entire scene, with the current alpha (0.2) at the very centre, linearly fading to 0.0 at the edges. The only examples I can find online end up doing nothing but changing the background to a random colour depending on the near/far values.
I'm looking for something like this: https://i.stack.imgur.com/92LEU.png
How can I achieve this? Here are the grid shaders:
vertex:
...ANSWER
Answered 2021-Apr-11 at 07:39Set the alpha channel depending on the distance from the center. The vUv cooridante of the center is (0.5, 0.5). Compute the Euclidean distance using the length function and set the alpha channel as a function of this distance:
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