Develop example Swift application for OS X reading and manipulating images
$10-30 USD
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Опублікований almost 8 years ago
$10-30 USD
Оплачується при отриманні
Develop small example application that can read an image from a file (NSImage?). The image is displayed onscreen. A method is called to obtain the underlying pixels in an efficient manner so that they can be iterated. A calculation is done on each pixel with the result becoming a pixel in another separate image which is returned by the method and displayed next to the original image.
For example, the calculation might involve comparing a given pixel to its immediate neighbors, perhaps figuring out a "difference": for each neighboring pixel, calculate the total difference of the Red, Green, and Blue values. Resulting pixel might be a grey scale value where black is no difference, white is maximum difference.
The key to the value of this project is understanding how to _efficiently_ access image pixels, and how to create a new image to display on the screen.
Prelude to larger project.
Hi,
I have 7 years experience in OSx/iOS application development with a lot of applications on Store (please review some of my recent applications from my Portfolio).
I made an example app for you. It reads pixels from NSImage, convert to Grayscale image and display. Please see screenshot with link:
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Please contact me, I will give you my project with 100usd
Skype: nlhdung (Dung Nguyen Le Hoang)
Regards!
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To reliably get the pixel data out of an NSImage we need to create a NSBitmapImageRep object for the given NSImage. The raw pixel data will be a one dimensional array of bytes with four bytes representing one pixel.
I have worked with many image processing projects in ObjectiveC and swift. I will be able to execute this. Contact me to go over further details. Thanks.