Comments (7)
Yep, I know that's a problem on the API level of our framework. Pull requests are welcome.
from aggeometrykit.
Sorry for the delay btw. I've been sick lately and haven't had the energy to do much.
from aggeometrykit.
No worries! I hope you feel better now.
I’ll try to arrange a pull request as soon as I get a spare moment.
Thank you!
On Apr 15, 2016, at 3:32 PM, Håvard Fossli [email protected] wrote:
Sorry for the delay btw. I've been sick lately and haven't had the energy to do much.
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from aggeometrykit.
Thank you! It may take some time to recover.
Anyways if you are eager to do this and want even better result we could throw our handwritten resampler (AGKTransformPixelMapper
) out the window and replace it with CoreImage's own perspective correction api. http://flexmonkey.blogspot.no/2016/04/a-look-at-perspective-transform.html Would be awesome and would probably make it both faster and with a lot higher quality! A lot of people would benefit from this.
Remember many people rely on the API so it is wise to mark public methods deprecated. That way we don't need to create a 2.x version of this framework. I like this way of deprecating https://github.com/ReactiveCocoa/ReactiveCocoa/blob/v2.5/ReactiveCocoa/RACSignal.h#L213-L219
from aggeometrykit.
Hey, take you time. No job worth to steal your health (except for a male porn star perhaps :) ).
As for TransformPixelMammer I wouldn’t be so sure about wasting it. I would remain both CI and handwritten (CG) versions. I’m already using CI perspective transform and CI perspective correction in my project. The trick is I use CI filter chains only on CIContext initialized with GPU, and sometimes I need the image taken from resources transformed the way I need it for onscreen animation (read CG). My images are not that small to forget about CPU to GPU memory movements. So I would keep both versions.
On Apr 15, 2016, at 3:42 PM, Håvard Fossli [email protected] wrote:
Thank you! It may take some time to recover.
Anyways if you are eager to do this and want even better result we could throw our handwritten resampler (AGKTransformPixelMapper) out the window and replace it with CoreImage's own perspective correction api. http://flexmonkey.blogspot.no/2016/04/a-look-at-perspective-transform.html http://flexmonkey.blogspot.no/2016/04/a-look-at-perspective-transform.html Would be awesome and would probably make it both faster and with a lot higher quality! A lot of people would benefit from this.
Remember many people rely on the API so it is wise to mark public methods deprecated. That way we don't need to create a 2.x version of this framework. I like this way of deprecating https://github.com/ReactiveCocoa/ReactiveCocoa/blob/v2.5/ReactiveCocoa/RACSignal.h#L213-L219 https://github.com/ReactiveCocoa/ReactiveCocoa/blob/v2.5/ReactiveCocoa/RACSignal.h#L213-L219
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from aggeometrykit.
😂
Hm. Interesting.
The quality is kind of jarring though. Nearest neighbor algorithm isn't as nice as other algorithms.
from aggeometrykit.
Well, yeah. But any anti-aliasing would kill the performance. Probably Accelerate framework will help or some ideas from OpenCV methods.
Anyway I’m all in it at the moment so feel free to ask any question. My current perspective and task is to define an algorithm for automatic cylinder or (Shepard) distortion correction like scanned book page with would work for like 100ms.
On Apr 15, 2016, at 4:03 PM, Håvard Fossli [email protected] wrote:
😂
Hm. Interesting.
The quality is kind of jarring though. Nearest neighbor algorithm isn't as nice as other algorithms.—
You are receiving this because you authored the thread.
Reply to this email directly or view it on GitHub #37 (comment)
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Related Issues (20)
- Better resampling of images with AGKTransformPixelMapper HOT 5
- Possible to perspective-distort an image? HOT 17
- Linker errors building Demo HOT 6
- imageWithPerspectiveCorrectionFromQuad corrupts source image HOT 6
- Anti-aliasing approaches HOT 8
- Transformation not applied? HOT 4
- Repo moved
- macos support? HOT 2
- Multiple Drag points + Video HOT 5
- Auto-layout HOT 4
- How can I crop the image by using AGGeometryKit. HOT 2
- Rotate around point and scale HOT 3
- Missing AGGeometryKitTests.m HOT 2
- Hello, when i set quadrilateral, the position of the layer is shifted, and how to remove the quadrilateral settings HOT 11
- tvOS HOT 4
- Memory leak in imageByCroppingToRect HOT 3
- Memory leaks HOT 2
- How can I get the final result as UIView or UIImageView
- Is it possible to straighten all the lines?
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