I have got one image like this
to only black and white colored image.
And I come across this ImageMagick resource
Does this can be used to generate black and white image from the above given image?
Does it is good to use this one?
If it is good one then does there is any documentation or tutorial on "How to use?".
UPDATE
SO GOT THE BEST SOLUTION FROM #ale0xB's SUGGESTION.
No third party api is required for doing this as apple's COREIMAGE.FRAMEWORK is the best for doing what I want to do. It's filters are working like charm :)
Thanks for the suggestion :)
I use this image filter. And it is great in speed and provides great output :)
Why would you want to use imageMagick instead of the standard Core Image to produce black and White images? I haven't used it before, but I doubt it's gonna give a much better performance than the native framework when it's just about creating a filter.
Since iOS 6 you have it really easy, have a look: Core Image filters, specially to CIColorMonochrome, which is the one you may be interested in.
If you're playing with images in your app, this is definitely worth checking: Core Image Programming Guide
Related
Is there a Windows server with Photoshop running that process all these templates? It just happens too quickly. How did they achieve that?
I've been looking for the answer for quite a long time and didn't find anything worthy.
A way something like this would be done would be to have an overlay template that you'd place your image under and then all of the shading and such would would go on top of it. Then it's just a mater of rotating and skewing the angle of the picture underneath the overlay to get the right perspective. This can be done programmatically in a language of your choice like PHP, Python, C#, etc.
I believe what you're describing may be achieved using the Adobe Photoshop API. Click on try demo and take a look at the various options, including the Smart Object demo.
I'm trying to write an app that recognize a logo saved in app bundle and readed as UIImage. I have did a search before make this question, the only free solution seems to be OpenCv. I have tried it in a demo i had download from toptal_logo_detector . The demo works and i can find my logo everywhere i place it. Anyway the camera is very slow, too slow to use it in a real app. Maybe there's a way to optimize it, but my question is another.
I have to recognize a vector logo (always the same logo) centered in a white background ,something like this wifi logo:
My only solution is the complex OpenCV? There's a free and simpler way to achive the result: YES here there's your logo/No there isn't ?
I found this tutorial (with project download) that does what you want using OpenCV
excuse me,my english is poor however i would try to describe my questions clearly.
first i want to operate (read,zoom,move,zoom with rectangle) some image whose format like jpg,tiff and img .
i have try to do this by gdal,using rasterio to zoom and move ,but the result is quite strange.it's slow than i do it with gdi+.i have asked other people,however ,the answer may be rasterio read image direct from hard disk, but gdi+ do things in ram. and maybe the images i operated are small images ,small than 4000*3000.
so now i operate images in gdi+.but i think if i can do same things in directx?
i mean i use directx instead gdi+.because i think it will be more fast.
and because i can only use c#,so i think there are some people could give me some suggestion with managed dx or xna
thx~~~
There is already a fast image viewer called TuiView that is simple to install and use.
Documentation is here: http://tuiview.org
If I understood your question, you are trying to build a simple image viewer.
If so you can easily do it with XNA and it will work very fast.
All you need to do is to load the image and display it to the screen, and the pan and zoom are also very simple.
Read this tutorial :
http://rbwhitaker.wikidot.com/spritebatch-basics
I am currently working on Appcelerator (Titanium) and now I want colorize image in APP. Like I have an image and I can able to change its color through Hue or saturation just like in Photoshop. I have searched too many things but still nothing found in working condition.
Any help would be highly appreciable
Probably the best architecture is to create a webview in which you have a canvas tag, then you are able to use any canvas image manipulation library you wish. There are a number of them, but here are a few.
Is there any filters available in ios to convert a image to cartoonistic image like exactly in the above picture?
For a much faster solution than ImageMagick, you could use the GPUImageToonFilter from my GPUImage framework:
It combines Sobel edge detection with posterization of the image to give a good cartoon-like feel. As implemented in this framework, it's fast enough to run on realtime video from the iPhone's camera, and is probably at least an order of magnitude faster than something similar in ImageMagick. My framework's also a little easier to integrate with an iOS project than ImageMagick.
If you want more of an abstract look to the image, the GPUImageKuwaharaFilter converts images into an oil painting style, as I show in this answer.
Try to use imagemagick for iOS http://www.imagemagick.org/download/iOS/
Of course you need some serval hours how to use imagemagick for iOS.
But then you should also look at: http://www.fmwconcepts.com/imagemagick/cartoon/index.php
and maybe also on:
http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=11140&start=0&st=0&sk=t&sd=a
This Core Image filter section in the iOS dev library, possibly combined with the script referenced by Jonas and a little luck, might get you where you're going. Not sure, having never used either of these technologies.