CropBitmap | image cropping - 图片裁剪
kandi X-RAY | CropBitmap Summary
kandi X-RAY | CropBitmap Summary
image cropping
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Top functions reviewed by kandi - BETA
- Get the width and height of a bitmap file
- Determine the size of a bitmap from an input stream
- Get the bitmap size of the given file descriptor
- Get the bitmap size from a byte array
- Get the width and height of a bitmap
- Get the bitmap size from the input stream
- Initialize a GestureDetector
- Zoom bitmap
- Perform a vertical flip on the bitmap
- Scroll and horizontal and horizontal flip
- Changes bitmap for specified height to rotate view with specified height
- Perform horizontal flip
- Change bitmap for the path to rotate
- Set bitmap for scaled path
- Set bitmap to rotate
- Sets the radius of this image
- Rotate a bitmap
- Handle touch event
- Handles a touch event
- Clips the image
- Override to change view size
- Called when the image is changed
- Initialize the attributes
- Region Override
- Region > drawBitmap
- Region > measure
CropBitmap Key Features
CropBitmap Examples and Code Snippets
Community Discussions
Trending Discussions on CropBitmap
QUESTION
I'm looking for a way to identify if an image is blur in C#. I saw this post but I did not see the way to apply to my case.
I found the AForge.dll to apply the FFT to my Image. I'm looking for a simple way to determine if image is blurred or not (I'm not very confortable with mathematics).
There is my code :
...ANSWER
Answered 2019-Jan-05 at 05:52This should do the trick.
The smaller (closer to zero) the result of calcBlurriness(), the sharper the image.
QUESTION
I have a code to take, save then share the screenshot of an Activity. My problem is I want just take the center of the activity so I add this code
...ANSWER
Answered 2018-Sep-07 at 03:58Try like this:
QUESTION
I have the following code which contains a lot of repetition..
...ANSWER
Answered 2017-Nov-20 at 14:14I was able to get this working with the following..
QUESTION
I want to detect the entire area below the black object.
I've managed to get the rectangle area below the black object like so
...ANSWER
Answered 2017-Aug-18 at 12:40You can "extract" part of image, then find contours in entire extracted area, then correct coords of find contours. Something like that:
Extract part of sourceMat:
QUESTION
I have a winforms program that scans a document and saves it to a file, It then opens another form and loads a cropped portion of the image into a picturebox but the image does not fill the picturebox.
The code that does this is as follows:
...ANSWER
Answered 2017-Jul-13 at 16:28I believe you are experiencing a scaling issue.
You indicate that the source image is scanned in. Most likely the image is scanned at a high resolution. When you create a new Bitmap, its default resolution is 96 x 96.
From the Remarks section of the DrawImage method you are using.
An Image stores a value for pixel width and a value for horizontal resolution (dots per inch). The physical width, measured in inches, of an image is the pixel width divided by the horizontal resolution. For example, an image with a pixel width of 360 and a horizontal resolution of 72 dots per inch has a physical width of 5 inches. Similar remarks apply to pixel height and physical height.
This method draws a portion of an image using its physical size, so the image portion will have its correct size in inches regardless of the resolution (dots per inch) of the display device. For example, suppose an image portion has a pixel width of 216 and a horizontal resolution of 72 dots per inch. If you call this method to draw that image portion on a device that has a resolution of 96 dots per inch, the pixel width of the rendered image portion will be (216/72)*96 = 288.
You have two Options to resolve the issue.
You can set the resolution of
cropBitmapto match the source image.cropBitmap.SetResolution(bitmap1.HorizontalResolution, bitmap1.VerticalResolution)
Use the DrawImageUnscaled Method.
g.DrawImageUnscaled(bitmap1, -rect.Left, -rect.Top, 0, 0)
QUESTION
I have code that is designed to take a raw image, process it asynchronously, and let the user see their processed image. Sometimes, the image processing causes an OutOfMemory error, and I would then like to notify the user that their devices is out of memory.
I am getting a crash, however, when trying to catch the error and notify the subscriber. Furthermore, when I put breakpoints in the code, the OutOfMemory error is being caught, and the subscriber.onError(e) line is hit, but the onPhotoProcessingError(e) is never reached.
Here is where the subscription occurs:
...ANSWER
Answered 2017-Apr-09 at 08:22This is because OutOfMemoryError is considered as fatal error by RxJava. Such errors are not "swallowed" internally and are not delivered to onError callbacks.
Here's a snippet from RxJava1 source code. This method gets called at the beginning of every internal error handling block:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install CropBitmap
You can use CropBitmap 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 CropBitmap 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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