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Android Crop Center of Bitmap

I have bitmaps which are squares or rectangles. I take the shortest side and do something like this:

int value = 0;
if (bitmap.getHeight() <= bitmap.getWidth()) {
    value = bitmap.getHeight();
} else {
    value = bitmap.getWidth();
}

Bitmap finalBitmap = null;
finalBitmap = Bitmap.createBitmap(bitmap, 0, 0, value, value);

Then I scale it to a 144 x 144 Bitmap using this:

Bitmap lastBitmap = null;
lastBitmap = Bitmap.createScaledBitmap(finalBitmap, 144, 144, true);

Problem is that it crops the top left corner of the original bitmap, Anyone has the code to crop the center of the bitmap?

Set dimensions for UIImagePickerController "move and scale" cropbox

How does the "move and scale screen" determine dimensions for its cropbox?

Basically I would like to set a fixed width and height for the "CropRect" and let the user move and scale his image to fit in to that box as desired.

Does anyone know how to do this? (Or if it is even possible with the UIImagePickerController)

Thanks!

how to change the UIImagePickerController crop frame

when opening working with an UIImagePickerController and setting allowsImageEditing = YES; there is a default cropping frame that is 320x320. In my case, I would like to setup that cropping frame to 320x240 for images that are landscape, and 240x320 for images that are portrait. However, I haven't been able to find a way to change that 320x320 frame that is used when editing /cropping a photo. Has any of you found a way to do it?

Thanks!

iOS Custom UIImagePickerController Camera Crop to Square

I'm trying to create a camera like Instagram where the user can see a box and the image would crop to that box. For Some reason the camera doesn't go all the way to the bottom of the screen and cuts off near the end. I'm also wondering how would I go about cropping the image to be 320x320 exactly inside that square?

How can I crop an image in Qt?

I load a PNG image in a QPixmap/QImage and I want to crop it. Is there a function that does that in Qt, or how should I do it otherwise?

Crop whitespace from image in PHP

Is it possible to remove the whitespace surrounding an image in PHP?

NOTE: to clarify I mean something like photoshops trim feature.

Thanks.

How to animate ImageView from center-crop to fill the screen and vice versa (facebook style)?

Background

Facebook app has a nice transition animation between a small image on a post, and an enlarged mode of it that the user can also zoom to it.

As I see it, the animation not only enlarges and moves the imageView according to its previous location and size, but also reveals content instead of stretching the content of the imageView.

This can be seen using the next sketch i've made:

The question

How did they do it? did they really have 2 views animating to reveal the content?

How did they make it so fluid as if it's a single view?

the only tutorial i've seen (link here) of an image that is enlarged to full screen doesn't show well when the thumbnail is set to be center-crop.

Not only that, but it works even on low API of Android.

does anybody know of a library that has a similar ability?

EDIT: I've found a way and posted an answer, but it's based on changing the layoutParams , and i think it's not efficient and recommended.

I've tried using the normal animations and other animation tricks, but for now that's the only thing that worked for me.

If anyone know what to do in order to make it work in a better way, please write it down.

How to crop a center square in a UIImage?

Sorry about this question, but I searched a lot of threads here in S.O. and I found nothing.

The question is: how to crop a center square in a UIImage?

I tried the code bellow but without success. The cropping happens, but in the upper-left corner.

-(UIImage*)imageCrop:(UIImage*)original
{
    UIImage *ret = nil;

    // This calculates the crop area.

    float originalWidth  = original.size.width;
    float originalHeight = original.size.height;

    float edge = fminf(originalWidth, originalHeight);

    float posX = (originalWidth   - edge) / 2.0f;
    float posY = (originalHeight  - edge) / 2.0f;


    CGRect cropSquare = CGRectMake(posX, posY,
                                   edge, edge);


    // This performs the image cropping.

    CGImageRef imageRef = CGImageCreateWithImageInRect([original CGImage], cropSquare);

    ret = [UIImage imageWithCGImage:imageRef
                              scale:original.scale
                        orientation:original.imageOrientation];

    CGImageRelease(imageRef);

    return ret;
}

How crop some region of image in Java?

i'm trying do the following code:

private void crop(HttpServletRequest request, HttpServletResponse response){
    int x = 100;
    int y = 100;
    int w = 3264;
    int h = 2448;

    String path = "D:images\\upload_final\\030311175258.jpg";

    BufferedImage image = ImageIO.read(new File(path));
    BufferedImage out = image.getSubimage(x, y, w, h);

    ImageIO.write(out, "jpg", new File(path));

}

But keeps giving me the same error:

java.awt.image.RasterFormatException: (x + width) is outside of Raster
sun.awt.image.ByteInterleavedRaster.createWritableChild(ByteInterleavedRaster.java:1230)
    java.awt.image.BufferedImage.getSubimage(BufferedImage.java:1156)

Where is my wrong ?

How to get variable width & height when cropping with Jcrop and save with PHP GD

I have an application that has to crop images with variable width & height. but i don't know how to do this with the php gd (Createimagefromjpeg) function

in my code i have:

$targ_w = 400;
$targ_h = 400;

This means that the cropped image will always get this width and height. that's not what i want. i want, in some way crop the images and crop it like i selected it at the crop area like in this picture:

now when i crop that image, like in the picture i get this:

It is a square image because i have to give a width and height. but at every image i crop the sizes are different.

Is there a way (variables, id etc..) to do this?

Thanks :D

EDIT: my code to create the cropped image:

<!DOCTYPE>
<html>
<head>
    <title>Cropped Image</title>
</head>
<body>

<?php
SESSION_start();
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
$targ_w = 400;
$targ_h = 400;
$jpeg_quality = 100;

$src = $_SESSION['target_path'];
$img_r = imagecreatefromjpeg($src);
$dst_r = ImageCreateTrueColor( $targ_w, $targ_h );

imagecopyresampled($dst_r,$img_r,0,0,$_POST['x'],$_POST['y'],
$targ_w,$targ_h,$_POST['w'],$_POST['h']);

header('Content-type: image/jpeg');
imagejpeg($dst_r, 'data/uploads/' . basename($src));
header('Location:'.$src);
exit;
}

?>

</body>
</html>

My code to upload the image:

<!DOCTYPE>
<html>

<head>
    <title>Het Vergeet-mij-nietje</title>
    <link rel='nofollow' href="style/default.css" REL="stylesheet" TYPE="text/css">
    <script type="text/javascript" src="js/showfunctie.js"></script>
    <script src="js/jquery.min.js"></script>
    <script src="js/jquery.Jcrop.min.js"></script>
    <link rel="stylesheet" rel='nofollow' href="css/jquery.Jcrop.css" type="text/css" />
</head>

<body>
<center>
    <div id="title">
    <h1><a rel='nofollow' href="index.php" id="link1">Het "Vergeet-mij-nietje"</a></h1>
    <h3>Upload Systeem</h3>
    </div>

<div id="content1">
    <p><b>Upload hier een afbeelding en druk op upload om hem vervolgens te kunnen bijsnijden.</b></p>
    <form action="uploaded.php" method="post" enctype="multipart/form-data">
        <input type="file" name="filename" />
        <input type="submit" value="Upload" />
    </form>
<br /> <br />

<p align="left"><b>Bekijk hier de gecropte en geuploadde foto's</b></p>


    <p class="album">
        <?php include 'album.php';?>
    </p>

</div>

<div id="copyright">
Copyright &copy; Kees Sonnema & Jan Beetsma
</div>

</body>
</html>

My code to crop the image with JCrop:

<html>
    <head>
    <script src="js/jquery-1.7.2.min.js"></script>
    <script src="js/lightbox.js"></script>  
    <link rel='nofollow' href="style/css/lightbox.css" rel="stylesheet" />
    </head>
<body>

<?php

$page = $_SERVER['PHP_SELF'];

//settings
$column = 6;

// directories
$base = "data";
$uploads = "thumbs";

// get album
$get_album = $_GET['album'];

if (!$get_album)
{
    echo "<b>Selecteer een album:</b><p />";
    $handle = opendir($base);
    while (($file = readdir($handle))!==FALSE)
    {
        if (is_dir($base."/".$file) && $file != "." && $file !=".." && $file !="$uploads")
        {
            echo "<a rel='nofollow' href='$page?album=$file'>$file</a><br />";
        }
    }
    closedir($handle);
}

else
{
    if (!is_dir($base."/".$get_album) || strstr($get_album,".")!=NULL || strstr($get_album,"/")!=NULL || strstr($get_album,"\\")!=NULL)
    {
        echo "Dit album bestaat niet.";
    }
    else
    {
        $x = 0;
        echo "<b>$get_album</b><p />";
        $handle = opendir($base."/".$get_album);
        while (($file = readdir($handle)) !== FALSE)
        {
            if ($file != "." && $file != "..")
            {
                echo "<table style='display:inline;'><tr><td><a rel='nofollow' href='$base/$get_album/$file' rel='lightbox'><img src='$base/$get_album/$file' height='150' width='100'></a></td></tr></table>";
                $x++;
            }
                if ($x==$column)
                {
                    echo "<br />";
                    $x = 0;
                }
            }
    }
    closedir($handle);

    echo "<p /><a rel='nofollow' href='$page'>Terug Naar Albums</a>";

}

?>

</body>
</html>

Android crop background

I have a LinearLayout with width set to fill_parent and height to wrap_content. Now I want to give it a background from a png file, but doing it in a traditional way causes the LinearLayout to resize in order to show the whole background instead of cropping the additional part.

How can I set the background of LinearLayout so it won't reisze?

Thanks

Crop image android android

I want to do cropping of image i found some pretty useful ones but somehow is like lacking of the darken the unselected areas so I wondering do anyone know how? or lead me to the right direction? The online tutorial i found shows that is will darken the selected area but when I use it, it won't. Please help me thanks alot and sorry for my bad command of english.

Links to the tutorial I use.

Crop image tutorial 1

Crop Image tutorial 2

I want it to be something like this.

editButton.setOnClickListener(new Button.OnClickListener(){

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent goEdit;
            goEdit = new Intent(PreviewActivity.this, CropImage.class);
            goEdit.putExtra("image-path", path);
            goEdit.putExtra("scale", true);
            goEdit.putExtra("fileName", nameFromPath);
            //finish();
            checkEdit = true;
            startActivityForResult(goEdit,0);

        }
});

EDIT I use this button listener to call into the cropImage file by calling to the class CropImage activity. This is a custom intent not the crop feature inside android but I think is the copy of it so that make it support for all versions but when I call into it the selected area isnt brighten and I donno where is the problem can anyone guide me? Thanks This is the library I'm using drioid4you crop image

Crop for SpatialPolygonsDataFrame

I have two SpatialPolygonsDataFrame files: dat1, dat2

extent(dat1)
class       : Extent 
xmin        : -180 
xmax        : 180 
ymin        : -90 
ymax        : 90 


extent(dat2)
class       : Extent 
xmin        : -120.0014 
xmax        : -109.9997 
ymin        : 48.99944 
ymax        : 60 

I want to crop the file dat1 using the extent of dat2. I don't know how to do it. I just handle raster files using "crop" function before.

When I use this function for my current data, the following error occurs:

> r1 <- crop(BiomassCarbon.shp,alberta.shp)
Error in function (classes, fdef, mtable)  : 

 unable to find an inherited method for function ‘crop’ for signature"SpatialPolygonsDataFrame"’

Crop a Bitmap image

How can i crop a bitmap image? this is my question i have tried some concepts using intents but still fail..

I am having a bitmap image which i want to crop!!

here is the code :

 Intent intent = new Intent("com.android.camera.action.CROP");  
                      intent.setClassName("com.android.camera", "com.android.camera.CropImage");  
                      File file = new File(filePath);  
                      Uri uri = Uri.fromFile(file);  
                      intent.setData(uri);  
                      intent.putExtra("crop", "true");  
                      intent.putExtra("aspectX", 1);  
                      intent.putExtra("aspectY", 1);  
                      intent.putExtra("outputX", 96);  
                      intent.putExtra("outputY", 96);  
                      intent.putExtra("noFaceDetection", true);  
                      intent.putExtra("return-data", true);                                  
                      startActivityForResult(intent, REQUEST_CROP_ICON);

Could anybody help me regarding this @Thanks

How to crop a mp3 from x to x+n using ffmpeg?

Following this question I decided to use ffmpeg to crop MP3s. On another question I found this way of doing it:

ffmpeg -t 30 -acodec copy -i inputfile.mp3 outputfile.mp3

The problem is that I don't want to crop the first 30 seconds, I want to crop from x to x+n, like from 30s to 100s. How would I go and do this?

I'm reading the man for ffmpeg but this is not really straightforward, especially since I just discovered about ffmpeg and I'm not familiar with audio/video editing softwares, so any pointers would be appreciated.