MultiChannel | Gradle multi-channel packaging
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- Initialize the activity
- Initialize the textView
- Override this method to handle the action selection
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Trending Discussions on MultiChannel
QUESTION
Imagine you have a segmentation map, where each object is identified by a unique index, e.g. looking similar to this:
For each object, I would like to save which pixels it covers, but I could only come up with the standard for
loop so far. Unfortunately, for larger images with thousands of individual objects, this turns out to be very slow--for my real data at least. Can I somehow speed things up?
ANSWER
Answered 2022-Feb-23 at 17:27If I understand the question correctly, You would like to see where any object is located, right? So if we start with one matrix (that is, all shapes are in one array, where empty spaces are zeros and object one consists of 1s, object 2 of 2s etc.) then You can create a mask, showing which pixels (or values in a matrix) are non-zero like this:
my_array != 0
Does that answer Your question?
Edit for clarification
QUESTION
I'm running Hyperledger Fabric network in Azure Kubernetes Cluster. I'm using single Azure Files volume (1000 GB) as my persistent volume.
However, my Orderer POD keeps restarting over and over again.
Orderer POD is logging following error:
...ANSWER
Answered 2022-Feb-18 at 05:48Turns out my WAL logs directory was deleted. Anyone landing on this question, please set following (if not already set) ENV variables on your Orderer deployments:
QUESTION
I'm starting to work on text data. I have a long charachter variable or vector and would like to check either 5 lines or 50 words in my console. How can I limit the output that R show when I inspect a character? Is there a useful R function or setting in RStudio to limit console output?
...ANSWER
Answered 2022-Jan-21 at 10:04stringr
has str_trunc
function to do return first n
characters -
QUESTION
I have two containers App and Webserver. Webserver is plain nginx:alpine image and App is expressjs app running on port 3030 under ubuntu:focal. I heard that this is a common practise to use separate containers for application and server. So I added proxy_pass http://app:3030/;
to nginx config. Something went wrong and I digged into this a bit. To exclude incorrect nginx setup I checked raw curl requests from webserver to app container with no luck. Here is my docker-compose:
ANSWER
Answered 2021-Oct-29 at 16:24You need to at least expose the 3030 port on the app container to make it available to other containers:
QUESTION
Hi, I am trying to implement total variation function for tensor or in more accurate, multichannel images. I found that for above Total Variation (in picture), there is source code like this:
...ANSWER
Answered 2021-Sep-20 at 20:56This function assumes batched images. So img
is a 4 dimensional tensor of dimensions (B, C, H, W)
(B
is the number of images in the batch, C
the number of color channels, H
the height and W
the width).
So, img[0, 1, 2, 3]
is the pixel (2, 3)
of the second color (green in RGB) in the first image.
In Python (and Numpy and PyTorch), a slice of elements can be selected with the notation i:j
, meaning that the elements i, i + 1, i + 2, ..., j - 1
are selected. In your example, :
means all elements, 1:
means all elements but the first and :-1
means all elements but the last (negative indices retrieves the elements backward). Please refer to tutorials on "slicing in NumPy".
So img[:,:,1:,:] - img[:,:,:-1,:]
is equivalent to the (batch of) images minus themselves shifted by one pixel vertically, or, in your notation X(i + 1, j, k) - X(i, j, k)
. Then the tensor is squared (.pow(2)
) and summed (.sum()
). Note that the sum is also over the batch in this case, so you receive the total variation of the batch, not of each images.
QUESTION
I'm currently working on a function that will detect if the row is a duplicate based on multiple conditions (square meters, images and price). It works perfectly fine, till it finds the duplicate, removes the row from DataFrame and then my for loop is disturbed. This produces IndexError: single positional indexer is out-of-bounds
.
ANSWER
Answered 2021-Jul-30 at 14:51From your question it seems (correct me if I'm wrong) that you need to iterate over indexes (Cartesian product) and drop the second indexes (index2
in your example) from the original dataframe.
I would recommend something like this to solve your issue:
QUESTION
Good day!
Please, help me understand how the Delay block works in AnyLogic. Suppose we deal with a multichannel transmission network. The model has 2 sources. Suppose these sources generate packets every 1 sec. Packets from different sources have different priorities and need different quantities of resources to be served (it is set up with Priority and Resource_quantity parameters respectively). The Priority_queue in the model is priority-based. The proposed model put the packets into the channels in accordance with Resource availability in the channel. Firstly, it tries to put the packet to the first channel. If there are no available resources it puts the packet into the second channel. If there are no resources in both channels it waits (it is realized with Hold block).
I noticed that if I set delays in blocks delay1 and delay2 with static parameters (for ex. 2 sec) the model works ok. But then I try to calculate it before these blocks the model doesn't take into consideration it at all. And in this case, the model works without any delays. What did I do wrong here?
I will appreciate any help.
The delay is calculated in Exit block and is written into the variable delay of the agent. I tried to add traceln(agent.delay) as @Jaco-Ben suggested right after calculation of the delay and it showed zero. In this case it doesn't also seize resources :(
...ANSWER
Answered 2021-Aug-03 at 20:25Thank @Jaco-Ben for the useful comments.
The delay is zero because
the result of division in Java depends on the types of the operands. If both operands are integer, the result will be integer as well. To let Java perform real division (and get a real number as a result) at least one of the operands must be of real type.
So it was my problem.
To solve it I assigned double
to one of the operands :
QUESTION
I'm trying to prepare some image data for my neural to classify. As part of the image preprocessing step, I'm applying the HOG filter in my dataset class as such:
...ANSWER
Answered 2021-Apr-22 at 17:10The problem is as I wrote in the comment, skimage requires the data to be ndarray but you give it a torch tensor thus that error.
Try this
QUESTION
I'm currently trying to write a script to display spectrograms of (multichannel) audio in Bokeh. Since I am doing some processing on the audio, I can't easily save them as files on the computer, so I'm trying to remain in Python.
The idea is to create a plot where each column corresponds to an audio sample, and each row corresponds to a channel.
Now I want to be able to listen to the corresponding audio when clicking on a subplot. I've managed to do the non-interactive part of displaying the spectrograms, written a callback to play audio, and applied it to each callback.
Here is a minimal working example of the code:
...ANSWER
Answered 2021-Apr-16 at 13:52So I ended up going another route with the callback after checking some more stuff in JavaScript, namely here, which ended up working with minimal alterations. The power of searching...
It's not necessarily the most efficient way of doing it, but it works, which is good enough for me right now.
I'm posting the full function here in case someone ever comes across it. The code should work as is, and I left some comments to explain what goes where.
QUESTION
I have a code which gives me binary images using Otsu thresholding. I am making a dataset for a U-Net, and I want to try different algorithms (global as well as local) for the same, so that I can save the "best" image. Below is the code for my image binarization.
...ANSWER
Answered 2021-Mar-05 at 11:43The code of my solution got longer than expected, but it offers some fancy manipulation possibilities. First of all, let's the see the actual window:
There are sliders for
- the morphological operation (dilate, erode, close, open),
- the structuring element (rectangle, ellipse, cross), and
- the kernel size (here: limited to the range
1 ... 21
).
The window name reflects the current settings for the first two sliders:
When pressing s, the image is saved incorporating the current settings:
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You can use MultiChannel like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the MultiChannel component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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