Brighter | A framework for building messaging apps with .NET and C | Microservice library

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?

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:

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

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:

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!

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:

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:

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

I have the following setup:

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: