Questions tagged [image-masking]
132 questions
15
votes
1 answer
How to cut random holes in SKSpriteNodes
Aside from the fact that the question asked here : Draw a hole in a rectangle with SpriteKit? has not satisfactorily been answered in its own right, the most significant difference between the two is that this question requires an absence of…
Confused
- 6,048
- 6
- 34
- 75
9
votes
3 answers
React Native - add a masked circle overlay over image
How do I go about adding an opaque circular overlay over an image in React Native? Similar to the instagram image picker:
as trivial a task this may seem, I've had a world of trouble replicating this. Any suggestions?
John Jackson
- 900
- 2
- 12
- 28
7
votes
4 answers
Displaying multiple masks in different colours in pylab
I've an array that includes decent observations, irrelevant observations (that I would like to mask out), and areas where there are no observations (that i would also like to mask out). I want to display this array as an image (using pylab.imshow)…
user1824335
- 85
- 2
- 7
5
votes
1 answer
Why is CSS mask-image not working with no-repeat?
I have a SVG and I'd like to change its color to red on some event, but you can't do that with SVG as a background-image, so you have to use CSS image-mask. I'm using PHP to echo my CSS onto the style attribute of the div:
$jfid =…
weegee
- 3,256
- 2
- 18
- 32
5
votes
1 answer
Apply gradient mask on image that already has transparency with ImageMagick?
I've got a PNG image with transparency:
original.png
Now I want to use ImageMagick to apply a diagonal gradient to its alpha channel. I mean so that its opacity remains in the top left corner, and gradually fades out to completely transparent in…
RocketNuts
- 9,958
- 11
- 47
- 88
5
votes
2 answers
5
votes
2 answers
Remove receipt image border using ImageMagick
I'm using ImageMagick service to pre-process the receipt image before using tesseract-OCR engine to extract texts. I need to remove the background of the receipts. I've gone through masking to remove the border here. But I'm unable to create the…
Sanjay Sharma
- 232
- 1
- 9
4
votes
0 answers
Drawing stroke lines around mask: Alpha mask or graphics mask (pixi.js)?
I would like to draw a stroke line around a mask element.
The idea is to have a rounded rectangle displaying an image and a stroke line around it.
I am using pixi and tried something like this:
// ui is my ui object
ui.thumbnail = new…
user305883
- 1,635
- 2
- 24
- 48
4
votes
3 answers
Image Segmentation with TensorFlow
I am trying to see the feasibility of using TensorFlow to identify features in my image data. I have 50x50px grayscale images of nuclei that I would like to have segmented- the desired output would be either a 0 or 1 for each pixel. 0 for the…
J_K
- 43
- 1
- 1
- 6
4
votes
1 answer
How to make bottle appear to be standing still
I have created a bottle with a label inside of a div that automatically scrolls back and forth as the div scrolls the bottle and label appear to be rotating. Below is a demo along with the code in a JSFiddle.
https://jsfiddle.net/pkfxqmLs/
Isaac Byrne
- 603
- 1
- 7
- 19
4
votes
2 answers
iOS Capture screen, then crop and mask the result image
In my application, I want to do the following steps:
1 - Capture the screen, this part is no problem for me, I'm using the following code:
- (UIImage *)captureScreen {
UIGraphicsBeginImageContextWithOptions(self.view.frame.size, YES, 0.0f);
…
Hanon
- 3,917
- 2
- 25
- 29
3
votes
2 answers
HTML canvas, use greyscale image as mask
I'm trying to apply a mask as it works in Photoshop. Black is transparent, white is visible. However, the composite modes don't allow for this, I think.
I can only find modes where it uses the alpha channel, but I'd like to use a jpg for smaller…
nizzle
- 1,036
- 2
- 10
- 23
3
votes
2 answers
How can I clip and transform an image, adding rounded corners and perspective?
How can I use HTML and CSS to make a div with an image inside it that is clipped and masked so that it looks like the following:
I've been trying to find a way to do this for about 2 hours now and got nowhere so I was just hoping someone could…
geoffs3310
- 5,599
- 11
- 51
- 104
3
votes
2 answers
QT : Masking an image - Suggestions?
I dont know if I am using the correct term here. However this is what I am trying to achieve and I would like some suggestions on how I could achieve that. I want to have a circle with border visible. Now here is the hard part and something I dont…
MistyD
- 16,373
- 40
- 138
- 240
2
votes
1 answer
Preprocessing layers with seed not producing the same data augmentation for images and masks
I'm trying to create a simple preprocessing augmentation layer, following this Tensorflow tutorial. I created this 'simple' example that shows the problem I'm having.
Even though I'm initializing the augmentation class with a seed, operations…
Philippe Miron
- 178
- 1
- 9