Imaging | Android image | Android library
kandi X-RAY | Imaging Summary
kandi X-RAY | Imaging Summary
Android Image Edit Lib. Android image editing library, WeChat image editing library
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Top functions reviewed by kandi - BETA
- Save image and save it
- OnDraw images
- On draw
- Save bitmap to image
- Called when View is clicked
- Show text mode
- Updates center view
- Set the scale
- Returns the bitmap for this intent
- Calculate input sample size
- Calculates the hue and end value
- On image check click
- Initializes the View
- Initialize the ImageView
- Calculates the rectangle based on the specified fraction
- Reset the default text
- Initialize the radio drawable
- Draws the fade path
- Perform a measure
- Draw the ball
- On touch event
- Create the image view
- Sets the layout of the view
- Decodes this image
- Fill a rectangle
- Sets the text to be displayed
Imaging Key Features
Imaging Examples and Code Snippets
Community Discussions
Trending Discussions on Imaging
QUESTION
I'm a beginner writing a simple windows desktop form app with a textbox that user types into and then clickbutton converts that text into a bitmap that is shown in a picturebox (that is only 96 x 64 pixels as it displays on an LED display panel).
Have borrowed some great examples from Stack overflow to get to a working solution. All works fine except it won't center align.
I can get it to left align fine but when I add in the new Create a stringformat to center align and line center align, the text then moves even further left and up - not sure whether its the image padding?
Here's what I have so far
...ANSWER
Answered 2022-Apr-07 at 13:53imgPadding should have same width and height as the image.
I did a little rewriting of your code to make it work:
QUESTION
I have built a button wrapper around the User Control (FFU)
, so the object is clickable trough the main window. When the FFU object is clicked, I want to open another User Control
: Popup FFU to be opened.
Main window XAML
...ANSWER
Answered 2022-Mar-31 at 16:57This is what I would change in your code.
UC_FFU.xaml: Put this before your closing
QUESTION
I have a requirement to build a SSIS package that sends HTML formatted emails and then saves the emails as tiff files. I have created a script task that processes the necessary records and then coverts the HTML code to the tiff. I have split the process into separate packages, the email send works fine the converting HTML to tiff is causing the issue.
When running the package manually it will process all files without any issues. my test currently is about 315 files this needs to be able to process at least 1,000 when finished with the ability to send up to 10,000 at one time. The problem is when I set the package to execute using SQL Server Agent it stops at 207 files. The package is deployed to SQL Server 2019 in the SSIS Catalog
What I have tried so far
I started with the script being placed in a SSIS package and deployed to the server and calling the package from a step (works 99.999999% of the time with all packages) tried both 32 and 64 bit runtime. Never any error messages just Unexpected Termination when looking at the execution reports. When clicking in the catalog and executing package it will process all the files. The SQL Server Agent is using a proxy and I also created another proxy account with my admin credentials to test for any issues with the account.
Created another package to call the package and used the Execute Package Task to call the first package, same result 207 files. Changed the execute Process task to an Execute SQL Task and tried the script that is created to manually start a package in the catalog 207 files. Tried executing the script from the command line both through the other SSIS package and the SQL Server Agent directly same results 207 files. If I try any of those methods directly outside SQL Server Agent the process runs no issues.
I converted the script task to a console application and it works processing all the files. When calling the executable file from any method from the SQL Server Agent it once again stops at the 207 files.
I have consulted with the companies DBA and Systems teams and they have not found anything that could be causing this error. There seems to be some type of limit that no matter the method of execution SQL Server Agent will not allow. I have mentioned looking at third-party applications but have been told no.
I have included the code below that I have been able to piece together. I am a SQL developer so C# is outside my knowledge base. Is there a way to optimize the code so it only uses one thread or does a cleanup between each letter. There may be a need for this to create over ten thousand letters at certain times.
Update
I have replaced the code with the new updated code. The email and image creation are all included as this is what the final product must do. When sending the emails there is a primary and secondary email address and depending on what email address is used it will change what the body of the email contains. When looking at the code there is a section of try catch that sends to primary when indicated to and if that fails it send to secondary instead. I am guessing there is a much cleaner way of doing that section but this is my first program as I work in SQL for everything else.
Thank You for all the suggestions and help.
Updated Code
...ANSWER
Answered 2022-Mar-07 at 16:58I have resolved the issue so it meets the needs of my project. There is probably a better solution but this does work. Using the code above I created an executable file and limited the result set to top 100. Created a ssis package with a For Loop that does a record count from the staging table and kicks off the executable file. I performed several tests and was able to exceed the 10,000 limit that was a requirement to the project.
QUESTION
I have some 4k images (.png, 3840p*2160p) in which I want to replace around 2500 colors each.
I have an Color[] Array of the 2500 current Colors and one with 2500 new Colors that are always different.
Currently I have an System.Drawing.Imaging.ColorMap Array in which I push 2500 single ColorMap objects with their respective OldColor & NewColor properties set to each value from my other arrays.
Then I can do the following:
...ANSWER
Answered 2022-Feb-24 at 20:52You can first extract the pixels of the image based on this post. Then, you can convert the Color
object to a simple 32-bit integer using ((int)color.R << 16) | ((int)color.G << 8) | color.B
. Then you can build a Dictionary
to map the dictionary values. You can then convert the bytes to int
pixels, use the dictionary to convert the value and convert the integer back to some bytes for each pixel of the image. This process can be parallelized using multiple threads because Dictionary
is thread-safe (as long as you only read it from the threads).
Alternatively, you can use a basic int[256*256*256]
lookup table instead of the Dictionary
class. The former can be much faster if it fits in the CPU cache but most modern processors does not have a so big L3 cache yet (ie. 16 MiB). It can be faster because only few cache lines (up to 2500) are loaded in the cache and they are probably well distributed in memory (see cache associativity).
An modern mainstream processor (eg. x86-64 ones) should be able to do that in a fraction of a second: typically between 0.01 and 0.3 second for a mainstream PC.
QUESTION
I've come across this problem many times over the years and still live in hope that there is an easy way to do this that I have missed. I work with barcodes a lot. They are usually made of black dots or lines on a white background. Barcode readers generally work faster and more accurately when the edges are crisp and then size of the lines or dots are precise.
Most barcode generation algorithms will give you a compact barcode usually with the smallest element size being one pixel. A typical QR code could fit in a 21 x 21 grid. This would be too small to see if printed pixel to pixel on most printers and would typically be scaled up. The result of scaling it up depends on the method used and although sometimes you are given a choice, often you have no options that make the image suitable. Even printing directly will often give you expected gray artefacts or forms of dithering. The most consistent way I have found is to scale the images before they are use daily in other places such as Microsoft Word, lightburn and a few others I use that still give me a headache.
Below I will go through what I have tried and show the results. I am limiting this to bitmaps only because using vectors here is not something I need on my current project.
My current best resolution is not pretty, it is slow and although I could improve the speed by locking the bits in the bitmap, I am hoping someone has a really simple answer that I had totally missed on my search again this time.
Here is an image of a simple QR code blown up in GIMP.
The problem is, if it is scaled up, it'll often end up looking like this:
Below I created a small test program to go through all the different modes I know of and then generate a matrix of images which I have reproduced below. The version I currently use is Mode 99 which involves inspecting each pixel and drawing a square.
Does anyone have any better ideas?
...ANSWER
Answered 2022-Feb-09 at 19:27You can use a library like ImageTracer.NET to convert the image to a vector image, then it'll scale as big as you need:
QUESTION
I am trying to train a CNN model with 2030 preprocessed eye images. the shape of my input data is (2030, 200,200, 1)
. At first, the shape of the data was 1527. Then I used imblearn.over_sampling.RandomOverSampler
to increase the dataset size. I constructed the model with Keras
and here is the summary of my model:
ANSWER
Answered 2022-Feb-07 at 18:25If you could try with changing optimizer from SGD
to Adam
, you will get better accuracy along with doing some other changes like adding more convolution layers
, increasing learning rate
, removing dropout
layers as follows:
QUESTION
I'm trying to draw simple graphics in the .NET Interactive Notebook, using C#. Kind of like a C# version of Dr. Racket.
The simplest thing I've seen so far is using System.Drawing
(SFML.NET, Raylib-cs work too, but they open up a window to show graphics instead of within the notebook).
I'd be willing to try another recommendation with #r "nuget:"
too.
The problem seems to be related to the MIME type, but I'm not sure. I get the same results with both .dib
and .ipynb
Is there a way to use something like .Display()
and show the simple image within the notebook?
Code
...ANSWER
Answered 2022-Jan-25 at 20:29Found the answer on github's issues. It looks like someone made a Skiasharp extension too, which is more what I'm looking for (although I cannot figure out how to install it):
https://github.com/dotnet/interactive/issues/902#issuecomment-900918386
Updated/Fixed Code
QUESTION
I'm scanning some text in the screen using Windows.Media.Ocr under a timer control, firing the tick event every 200 ms. I'm then displaying the output in a richtextbox that is unfortunately flickering..
I made a gif to show the issue ( the ocr is on purpose scanning just the values with M)
is there any way to stop this behavior? Thanks
The code I'm using inside of the timer is:
...ANSWER
Answered 2022-Jan-13 at 20:08I solved using WM_SETREDRAW
QUESTION
I'm using this function to generate a simple gradient bitmap using LinearGradientBrush
which I save as a file in the end to use as a wallpaper. But the the problem is the result doesn't look "smooth", it looks rather "choppy" as you can see the colors' lines.
I use the bounds of the screen as the dimensions of the bitmap and increasing the size doesn't improve the quality (I tried 2x and even 4x).
I tried setting the InterpolationMode
and SmoothingMode
but neither seemed to have an effect on the end result.
Is there a way to fix this issue?
...ANSWER
Answered 2022-Jan-13 at 14:42The issue is with the RandomShade()
method. By generating a shade using the alpha channel, the gradient is also interpolating this channel.
I think an approach that would yield better results is darkening or lightening the color randomly using the other three (color) channels instead, and keep the alpha constant. In other words, vary the brightness of the colors only.
For example:
QUESTION
For a Belgian sports community project, built in ASP.Net Core, I am dynamically rendering an image in C#. The image is based on a "base picture", in which I dynamically add Text and then return the image to the client.
It works well, and I am quite happy with the results.
However, when I compare the image that is generated client side, on my dev environment (which is MacOS), that image renders more beautiful, compared to my production environment (a Linux VM in the Azure platform).
As a comparison, you can see two pictures, and you will see the difference, when looking at the texts. The text strings look much more pixelated, in the second picture.
Is there something I can do, to avoid this? Could this be related to the (un)availability of a GPU, or something like that?
Any insights are welcome.
(I also have added the Nuget package runtime.osx.10.10-x64.CoreCompat.System.Drawing
to my project, which was needed to run successfully on my MacOS)
For reference: the relevant code snippet:
...ANSWER
Answered 2021-Dec-23 at 21:38Don't use System.Drawing
. Microsoft itself warns against this in the documentation. It exists in .NET Core only for compatibility
In .NET 6 and later versions, the System.Drawing.Common package, which includes this type, is only supported on Windows operating systems. Use of this type in cross-platform apps causes compile-time warnings and run-time exceptions. For more information, see System.Drawing.Common only supported on Windows.
The linked article explains what's wrong and offers several cross-platform alternatives like ImageSharp and SkiaSharp.
System.Drawing
's primary job is to draw the UI on the screen anyway, not manipulate images. On Windows it's just a very thin wrapper over GDI+. The equivalent cross-platform technology is MAUI, which hasn't been released yet.
The equivalent code in ImageSharp could be:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Imaging
You can use Imaging 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 Imaging 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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