my plan is implementing an image in a Matlab GUIDE figure. Somehow the output is always blurred (see screenshot). On the left you can see the image in Photoshop on the right in Matlab - notice how the font and other parts become blurred.
I experimented with JPEG and PNG file formats (no compression), I also tried various pixel sizes(resolutions smaller, same and bigger as the actual position of the image) and DPI(values between 30-300) settings, because I expected some scaling issue. Somehow I am stuck - Looking forward to your input!
Thank you,
Florian
Screenshot of the issue: http://s1.bild.me/bilder/260513/6875414Screen_Shot_2014-06-29_at_23.19.34.png
Most probably the reason for the blur is interpolation.
If the axis size you allocated for the image is different from the size of the image MATLAB will resize the image to occupy the whole area.
In order to prevent any interpolation you must set the axis dimension to be the image dimension.
Related
I have a 2D DICOM images that appears (as it should do) to have a high intensity center, with the outside area having an intensity that approaches zero. When I load and view in MATLAB R2021b:
img=dicomread('image.dcm');
imshow(img);
The intensity appears much higher. I worry that this has affected the actual pixel intensity values and isn't just imshow trying to increase visibility. Has anyone any ideas how to get rid of this correction?
Regular image
,
Image in MATLAB
My actual Image is
Here I need to resize the image 140*80(Width*height)
But after resize the circle in the image becomes oval how to prevent that.
Your current image resolution is 700*312 has a ratio of 1:2.2435897435897435897435897435897..
The resolution you are trying to get is 140*80 has a ratio of 1:1.75.
In order to get a perfect circle, you must maintain the same ratio between the images.
If acceptable, try resizing your image to 140*62.4 (62.4 = 140/(700/312)).
More info about Aspect Ratio on Wikipedia .
Specifically for Xamarin, please show us what components are you using, or some example code so answers could be more specific.
I'm having some troubles right now with isometric pixel art. So I'm drawing this picture that is going to be uploaded later in the game, but when I save it and zoom it looks like this:
The picture became blurred and colors are not that bright. Is there anything I could do about it? How can I save it so it will be the same as in the photoshop (300% zoom)?
Would be really grateful for any help.
As Phlume said, you can use Vector base software like illustrator, CorelDraw, Inkscape (freeware) etc. and export it as a SVG image.
OR
for a quick fix, in a Photoshop you can create image in a 300% size (canvas size 3 times then require ) and export image in 96dpi. And further to reduce the image size for faster loading you can try https://tinypng.com/
And by the coding you can resize it to required size.
Photoshop is a raster based program. To retain the clarity of the pixel artwork you should switch to a vector bed program such as illustrator. When you zoom in with illustrator the math recalculate to form clean lines from point to point. The blurry you see in photoshop is a product of the pixel data becoming compressed upon saving and finding a "happy medium" to represent the color within that region.
CSS3 Hero Image question:
Whats the best pixel dimension and Image Size for a full screen responsive background?
Whenever I use the cover property, it always seems to miss out most the image.
Thanks,
Steve
Used photoshop to crop the image to a 16:9 ratio, 1920 x 1080 pixel dimension for best image quality. Seems to work well with my website, hopefully the file size (507kb) won't be an issue on page loading response times.
Also, consider running your images through a compressor, which can greatly reduce their file size.
https://compressor.io
Currently I am trying to crop the face along with hairs by the help of image segmentation methods, and then I have set all the non color pixels to be transparent, Then I am trying to apply Binary Threshold technique and Adaptive Threshold. But I am getting non-desirable results. Unfortunately the OpenCV methods are not ignoring the transparent pixels, and in documentation it is not defined how to handle this case, Any experienced help is appreciated (However I can replace the transparent pixels by a color value, provided I get the desired results)
Image 1.png(original Image with transparent background)
Image2.png(Image after applying simple binary threshold)
Image3.png(Image after adaptive threshold)
Clearly some image distortion/Noise is seen in the transparent areas of the image ?
And I was able to solve this issue , I am posting this answer to help other fellow people for the educational purposes, and due to limited clarification about this thing, So the hack is to change the background color to be white(it worked in my case but you can surely choose some other background color), So now I colored all the pixels with alpha value 0 as while colored opaque pixels and then applied the required operations, And the outputs were as per expectation:
Then applied some more image processing features to create this image out of this: