z5 | Python interface for datasets in zarr and N5 format | Computer Vision library

 by   constantinpape C++ Version: 2.0.13 License: MIT

kandi X-RAY | z5 Summary

kandi X-RAY | z5 Summary

z5 is a C++ library typically used in Artificial Intelligence, Computer Vision, Amazon S3 applications. z5 has no vulnerabilities, it has a Permissive License and it has low support. However z5 has 7 bugs. You can download it from GitHub.

C++ and Python wrapper for zarr and n5 file formats. Implements the file system specification of these formats. Implementations for cloud based storage are work in progress. Any help is highly appreciated. See issues #136 and #137 for details.
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              z5 has a low active ecosystem.
              It has 80 star(s) with 23 fork(s). There are 10 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 31 open issues and 78 have been closed. On average issues are closed in 105 days. There are 4 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of z5 is 2.0.13

            kandi-Quality Quality

              OutlinedDot
              z5 has 7 bugs (1 blocker, 1 critical, 5 major, 0 minor) and 54 code smells.

            kandi-Security Security

              z5 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              z5 code analysis shows 0 unresolved vulnerabilities.
              There are 1 security hotspots that need review.

            kandi-License License

              z5 is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              z5 releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.
              It has 3226 lines of code, 287 functions and 33 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            z5 Key Features

            No Key Features are available at this moment for z5.

            z5 Examples and Code Snippets

            No Code Snippets are available at this moment for z5.

            Community Discussions

            QUESTION

            In ggplot, why my labels are not palced in the right position?
            Asked 2022-Apr-09 at 16:22

            this is my dataframe:

            ...

            ANSWER

            Answered 2022-Apr-09 at 16:22

            Here is one way we could do it:

            Source https://stackoverflow.com/questions/71809786

            QUESTION

            How to set the newly created sheet as the active sheet? Google sheets
            Asked 2022-Apr-03 at 16:02

            Am having a problem that I have to run each script alone due to not being able to switch to the newly created sheet generated by the function copyWithProtections, so when the next function ClearValueAftercreatingnewsheet runs, it runs on the active sheet not the newly generated one, is there a way to to have the newly created sheet as the active one?

            ...

            ANSWER

            Answered 2022-Apr-03 at 16:02

            You can set the active sheet from the sheet name. By making your script in one single function, you can use the newly created output sheet nSheet and get it's name using getSheetName(). You can then reference it on the clear values part. Try the following code instead:

            Source https://stackoverflow.com/questions/71669442

            QUESTION

            New file appeared on root folder. Is it for wordpress?
            Asked 2022-Mar-23 at 12:57

            I'm new to wordpress and do not fully understand which files of wordpress are its own and which are not. Theres a file on root folder by the name b5tzvh8n.php with the following content:

            ...

            ANSWER

            Answered 2022-Mar-23 at 12:57

            This is malware, you should install a plugin like Wordfence. It will allow you to find the infected files and hopefully also the point of entry. You should be aware that this happens often from nulled sofware packages.

            Source https://stackoverflow.com/questions/71582860

            QUESTION

            Diagnosing and Resolving a ToastNotification Exception
            Asked 2022-Mar-01 at 19:34

            QUESTION:
            My simple Windows notification application throws an exception with the error message "Access is denied." How can I fix this?

            PREFACE:
            The structure in use is prescribed by the current implementation of and constraints placed on our application. While a better structure than this may exist, changing the structure is not an option at this time.

            Relevant structural information:
            We have a service that always runs. This service will spawn a process--let's call it data.exe--for every active session ID on the machine. For example, if there are currently four sessions active on the server with session IDs 1-4, data.exe will be running for all 4 sessions. Notably, the user name in Task Manager for each process is SYSTEM, despite running in non-zero session IDs.

            INFORMATION:
            My application--toaster.exe--is supposed to be launched from a different process via CreateProcessW(). The full launch function is adapted from a Raymond Chen blog post found here. As a brief explanation of what this function does, it launches a program with the shell as its parent process. For clarity, I implemented this function into data.exe to launch toaster.exe, and the adaptations I made are simply to handle errors and, obviously, to launch the particular program I want, rather than cmd.exe. Mr. Chen's function was the only method I found that would successfully and reliably launch my application and have it perform as intended.

            Currently, if I launch toaster.exe by clicking on it, it performs its functions perfectly. I can also confirm that I am able to launch toaster.exe from another process--I setup a test application that can successfully launch toaster.exe in such a way that it does not throw an exception. To clarify what I mean by "functions perfectly," toaster.exe successfully sends me a simple one-line notification with a message that I have hardcoded for testing purposes.

            However, if I launch toaster.exe from a program that was launched by our service, it hits an exception when it attempts to create the winrt::Windows::UI::Notifications::ToastNotification object. Unfortunately, this last one is the only launch method I care about--this program needs to be compatible with being launched in this way because it will always be launched by data.exe, which, as mentioned in the preface, is launched by our service.

            Here is the function in toaster.exe where the exception occurs:

            ...

            ANSWER

            Answered 2022-Mar-01 at 19:34

            EDIT 2022/2/28:
            I have found a more elegant solution to this problem involving WTSQueryToken() and GetTokenInformation() thanks to this SO answer.

            WTSQueryToken() returns a filtered user token, and without any extra steps, this token can be placed into a CreateProcessAsUserW() call to spawn my notification app.

            I opt to call GetTokenInformation() to obtain the unfiltered (read: elevated) token for the user, which allows me to keep all my application's logs centralized in the Program Files directory. I am unclear if a process launched with an unfiltered token of a user without admin privileges will still be able to log to the Program Files directory, but this is non-essential to the process's ability to run.

            SOLUTION:
            The error message given for the thrown exception is Access is denied. This may or may not be the result of a bug related to the PROC_THREAD_ATTRIBUTE_PARENT_PROCESS flag. The workaround for this is simply to spawn the process again from the child process, using the exact same function call minus the problematic flag.

            In my case, I pass a parameter that acts as a flag to tell the child process that it needs to relaunch itself.

            EXPLANATION:
            Thanks to the guidance of @IInspectable, I was able to resolve my issue.

            Firstly, IInspectable informed me that the exception's data type was likely that of a winrt::hresult_error, which ended up being correct. From this, I was able to see that the exception message was Access is denied.

            After updating my question to reflect this, IInspectable returned to point me towards the bottom of the comments of the Raymond Chen blog post that I linked in my question.

            In short, the comment suggests that there is an underlying bug in the API that causes processes spawned in the way demonstrated by Chen to load with incorrect parameters, and offers a simple workaround by using Chen's function from within the child process to launch another child process. The comment also suggests that removing the PROC_THREAD_ATTRIBUTE_PARENT_PROCESS flag from the second function call is necessary, but this is not something I needed to do for the workaround to succeed.

            For posterity, the comment from the blog post comments is as follows:

            There are issues using the PROC_THREAD_ATTRIBUTE_PARENT_PROCESS flag… Environment variables for the new process are copied from the High-IL process not the Medium-IL process which cause issues with shell functions and some directory paths (%temp%, %userprofile% etc…) The token security descriptor for the process is also created without an ACE for the current user blocking access to most resources and the token security descriptor will also have a High-IL even though the process itself has a Medium-IL… This blocks the new process from accessing any system objects (events/pipes/sections/IPC etc…) while also blocking the process from opening its own process token with TOKEN_QUERY access. This seems to be a severe bug with the API but not sure if it’ll be fixed. As a workaround you can call CreateProcess a second time but from the new child process (without the PARENT_PROCESS flag) and it’ll be created with the correct token DAC security and environment variables (this is also why the above above sample doesn’t have issues with cmd.exe since it launches child processes).

            Source https://stackoverflow.com/questions/71132035

            QUESTION

            How to add new columns to pandas data frame using .loc
            Asked 2022-Feb-28 at 21:40

            I am calculating very simple daily stock calculations in data frame ( for e.g. SMA, VWAP, RSI etc). After I upgraded to anaconda 3.0, my code stopped working and gives followed error. I don't have much experience in coding and need some help.

            KeyError: "Passing list-likes to .loc or [] with any missing labels is no longer supported. The following labels were missing: Index(['RSI', 'ZONE'], dtype='object'). See https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#deprecate-loc-reindex-listlike"

            Followed is the code.

            ...

            ANSWER

            Answered 2022-Feb-28 at 21:40

            A few lines need to be tweaked

            1. Instead of

            Source https://stackoverflow.com/questions/71300628

            QUESTION

            How to write python script to read data from a generic data file and write to a .x?
            Asked 2022-Feb-17 at 05:40

            I'm a student working with a rather old program, and I must use an uncommon file format for which I can't find any file conversion. It seems I have to write a script to convert the data I need myself. I don't know how to manipulate text files well enough to solve this issue.

            Any help would be appreciated. Thanks.

            I have data in the form of:

            ...

            ANSWER

            Answered 2022-Feb-16 at 07:20

            You can use regex and some for loops to scrape the data you wanted from the file. Here is the code I wrote for your example data, it works with your provided example (I replaced x,y and z coordinates with numbers):

            Source https://stackoverflow.com/questions/71137071

            QUESTION

            Problems with the names of the elements of a list
            Asked 2022-Feb-13 at 14:13

            I have created a list whose elements are themselves a list of matrices. I want to be able to extract the vectors of observations for each variable

            ...

            ANSWER

            Answered 2022-Feb-13 at 14:13

            Here you have a list of matrix with scenario in row and n columns.

            Source https://stackoverflow.com/questions/71063070

            QUESTION

            The speed of training is reduced using a custom method in tensorflow.keras.layers
            Asked 2022-Feb-09 at 00:05

            I'm using tensorflow.data and custom layers to solve the bottleneck of data augmentation, but I found that using tensorflow.data alone is faster than mixing, I don't know what's going on in the custom layers, can someone please tell me?

            Thanks in advance!

            This is my data augmentation code, mainly to do standardization and resize.

            ...

            ANSWER

            Answered 2022-Feb-09 at 00:05

            I reduced the tf.gather method in the code, and used tf.TensorArray instead of the tf.tensor_scatter_nd_update method, which really optimized my training speed, from 2min to 2s.

            Source https://stackoverflow.com/questions/70712493

            QUESTION

            Calculating Distances and Filtering and Summing Values Pandas
            Asked 2021-Dec-07 at 14:01

            I currently have data which contains a location name, latitude, longitude and then a number value associated locations. The final goal for me would to get a dataframe that has the sum of the values of each location within specific distance ranges. A sample dataframe is below:

            ...

            ANSWER

            Answered 2021-Dec-07 at 14:01

            I would define a helper function, making use of BallTree, e.g.

            Source https://stackoverflow.com/questions/70240060

            QUESTION

            How to handle null values /NAs in network analysis
            Asked 2021-Nov-17 at 23:18

            This question is basically extension of my previous question posted here.
            How to handle null values/NAs in these types of situations. Example scenario and data

            ...

            ANSWER

            Answered 2021-Nov-16 at 20:55
            Update

            If you have more then one NA in certain row, you can try the code below

            Source https://stackoverflow.com/questions/69986682

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install z5

            You can download it from GitHub.

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