cv-combinators 0.1.2.3 → 0.1.3
raw patch · 6 files changed
+357/−176 lines, 6 filesdep −SDLdep −graphics-drawingcombinatorsdep ~HOpenCVPVP: major bump suggested
API removals or changes: PVP suggests a major version bump
Dependencies removed: SDL, graphics-drawingcombinators
Dependency ranges changed: HOpenCV
API changes (from Hackage documentation)
+ AI.CV.ImageProcessors: namedWindow :: String -> Bool -> ImageSink
- AI.CV.ImageProcessors: type Image = PImage
+ AI.CV.ImageProcessors: type Image = IplImage
Files
- LICENSE +280/−0
- cv-combinators.cabal +28/−17
- src/AI/CV/ImageProcessors.hs +47/−43
- src/Graphics/GraphicsProcessors.hs +0/−43
- src/IntegratedTest.hs +0/−70
- src/Test.hs +2/−3
+ LICENSE view
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cv-combinators.cabal view
@@ -1,6 +1,7 @@ name: cv-combinators-version: 0.1.2.3-license: BSD3+version: 0.1.3+license: GPL-2+license-file: LICENSE maintainer: Noam Lewis <jones.noamle@gmail.com> bug-reports: mailto:jones.noamle@gmail.com category: AI, Graphics@@ -17,32 +18,42 @@ . build-type: Simple-cabal-version: >= 1.2+cabal-version: >= 1.6 Tested-With: GHC == 6.10.4 +flag Demos+ description: Enable building demos+ default: False+ library exposed-modules: AI.CV.ImageProcessors hs-Source-Dirs: src- build-depends: base >=4 && <5, HOpenCV >= 0.1.2.1, allocated-processor >= 0.0.2, vector-space+ build-depends: base >=4 && <5, HOpenCV >= 0.3, allocated-processor >= 0.0.2, vector-space ghc-options: -Wall+ Ghc-Prof-Options: -Wall + executable test-cv-combinators+ if flag(Demos)+ Buildable: True hs-source-dirs: src- Build-Depends: base >=4 && <5, HOpenCV >= 0.1.2.1, allocated-processor >= 0.0.2, vector-space+ Build-Depends: base >=4 && <5, HOpenCV >= 0.3, allocated-processor >= 0.0.2, vector-space main-is: Test.hs- Ghc-Options: -Wall - Ghc-Prof-Options: -prof -auto-all + ghc-options: -Wall+ Ghc-Prof-Options: -Wall other-modules: AI.CV.ImageProcessors -executable test-cv-combinators2- hs-source-dirs: src- Build-Depends: base >=4 && <5, HOpenCV >= 0.1.2.1, allocated-processor >= 0.0.2, SDL, graphics-drawingcombinators, vector-space- main-is: IntegratedTest.hs- Ghc-Options: -Wall - Ghc-Prof-Options: -prof -auto-all - other-modules: AI.CV.ImageProcessors, Graphics.GraphicsProcessors+-- executable test-cv-combinators2+-- if flag(NoDemos)+-- Buildable: False+-- hs-source-dirs: src+-- Build-Depends: base >=4 && <5, HOpenCV >= 0.1.2.1, allocated-processor >= 0.0.2, SDL, graphics-drawingcombinators, vector-space+-- main-is: IntegratedTest.hs+-- Ghc-Options: -Wall+-- Ghc-Prof-Options: -prof -auto-all+-- other-modules: AI.CV.ImageProcessors, Graphics.GraphicsProcessors --- source-repository head--- type: git--- location: git://github.com/sinelaw/cv-combinators.git+source-repository head+ type: git+ location: git://github.com/sinelaw/cv-combinators.git
src/AI/CV/ImageProcessors.hs view
@@ -34,6 +34,7 @@ videoFile, window,+ namedWindow, resize, dilate,@@ -48,17 +49,15 @@ import Control.Processor(runUntil, IOSink, IOSource, IOProcessor, processor) -import AI.CV.OpenCV.Types(PImage) import qualified AI.CV.OpenCV.CV as CV-import qualified AI.CV.OpenCV.CxCore as CxCore-import qualified AI.CV.OpenCV.HighGui as HighGui-import AI.CV.OpenCV.CxCore(IplImage, CvSize, CvRect, CvMemStorage)-import AI.CV.OpenCV.CV(CvHaarClassifierCascade)+import AI.CV.OpenCV.CV (HaarClassifierCascade) -import Foreign.Ptr(Ptr)+import qualified AI.CV.OpenCV.CxCore as CxCore+import AI.CV.OpenCV.CxCore (CvSize, CvRect, MemStorage) +import qualified AI.CV.OpenCV.HighGui as HighGui -type Image = PImage+type Image = CxCore.IplImage type ImageSink = IOSink Image type ImageSource = IOSource () Image@@ -71,7 +70,7 @@ -- | Predicate for pressed keys keyPressed :: Show a => a -> IO Bool-keyPressed _ = fmap (/= -1) $ HighGui.waitKey 3 -- todo wrap waitKey more generally for the API+keyPressed _ = fmap (/= Nothing) $ HighGui.waitKey 3 -- todo wrap waitKey more generally for the API -- | Runs the processor until a predicate is true, for predicates, and processors that take () as input -- (such as chains that start with a camera).@@ -83,52 +82,56 @@ runTillKeyPressed f = f `runTill` keyPressed >> (return ()) -------------------------------------------------------------------capture :: IO (Ptr HighGui.CvCapture) -> ImageSource-capture pCap = processor processQueryFrame allocateCamera fromState releaseNext- where processQueryFrame :: () -> (Ptr CxCore.IplImage, Ptr HighGui.CvCapture) - -> IO (Ptr CxCore.IplImage, Ptr HighGui.CvCapture)+capture :: IO HighGui.Capture -> ImageSource+capture getCap = processor processQueryFrame allocateCamera fromState releaseNext+ where processQueryFrame :: () -> (Image, HighGui.Capture) + -> IO (Image, HighGui.Capture) processQueryFrame _ (_, cap) = do- newFrame <- HighGui.cvQueryFrame cap+ newFrame <- HighGui.queryFrame cap return (newFrame, cap) - allocateCamera :: () -> IO (Ptr CxCore.IplImage, Ptr HighGui.CvCapture)+ allocateCamera :: () -> IO (Image, HighGui.Capture) allocateCamera _ = do- cap <- pCap- newFrame <- HighGui.cvQueryFrame cap+ cap <- getCap+ newFrame <- HighGui.queryFrame cap return (newFrame, cap) fromState (image, _) = return image - releaseNext (_, cap) = HighGui.cvReleaseCapture cap+ releaseNext (_, cap) = HighGui.releaseCapture cap -- | A capture device, using OpenCV's HighGui lib's cvCreateCameraCapture -- should work with most webcames. See OpenCV's docs for information. -- This processor outputs the latest image from the camera at each invocation. camera :: Int -> ImageSource-camera index = capture (HighGui.cvCreateCameraCapture (fromIntegral index))+camera index = capture (HighGui.createCameraCapture (fromIntegral index)) videoFile :: String -> ImageSource-videoFile fileName = capture (HighGui.cvCreateFileCapture fileName)+videoFile fileName = capture (HighGui.createFileCapture fileName) ------------------------------------------------------------------ -- GUI stuff -- | A window that displays images. -- Note: windows with the same index will be the same window....is this ok?+-- Response: Yes. It will display whatever images you give it. window :: Int -> ImageSink-window num = processor procFunc allocFunc return return+window num = namedWindow (show num) True++namedWindow :: String -> Bool -> ImageSink+namedWindow s a = processor procFunc allocFunc return return where procFunc :: (Image -> () -> IO ())- procFunc src x = HighGui.showImage (fromIntegral num) src >> return x+ procFunc src x = HighGui.showImage s src >> return x allocFunc :: (Image -> IO ())- allocFunc _ = HighGui.newWindow (fromIntegral num) True+ allocFunc _ = HighGui.namedWindow s a ------------------------------------------------------------------ -- | A convenience function for constructing a common type of processors that work exclusively on images imageProcessor :: (Image -> Image -> IO Image) -> (Image -> IO Image) -> ImageProcessor-imageProcessor procFunc allocFunc = processor procFunc allocFunc return CxCore.cvReleaseImage+imageProcessor procFunc allocFunc = processor procFunc allocFunc return CxCore.releaseImage -- | OpenCV's cvResize resize :: Int -- Width@@ -136,19 +139,19 @@ -> CV.InterpolationMethod -> ImageProcessor resize width height interp = imageProcessor processResize allocateResize where processResize src dst = do- CV.cvResize src dst interp+ CV.resize src dst interp return dst allocateResize src = do nChans <- CxCore.getNumChannels src :: IO Int depth <- CxCore.getDepth src- CxCore.cvCreateImage (CxCore.CvSize (fromIntegral width) (fromIntegral height)) (fromIntegral nChans) depth+ CxCore.createImage (CxCore.CvSize (fromIntegral width) (fromIntegral height)) depth (fromIntegral nChans) -- | OpenCV's cvDilate dilate :: Int -> ImageProcessor-dilate iterations = imageProcessor procDilate CxCore.cvCloneImage+dilate iterations = imageProcessor procDilate CxCore.cloneImage where procDilate src dst = do- CV.cvDilate src dst (fromIntegral iterations) + CV.dilate src dst (fromIntegral iterations) return dst @@ -160,20 +163,21 @@ -> ImageProcessor canny thres1 thres2 size = processor processCanny allocateCanny convertState releaseState where processCanny src (gray, dst) = do- HighGui.cvConvertImage src gray 0 - CV.cvCanny gray dst (fromIntegral thres1) (fromIntegral thres2) (fromIntegral size)+ HighGui.convertImage src gray 0 + CV.canny gray dst (fromIntegral thres1) (fromIntegral thres2) (fromIntegral size) return (gray, dst) allocateCanny src = do- target <- CxCore.cvCreateImage (CxCore.cvGetSize src) 1 CxCore.iplDepth8u- gray <- CxCore.cvCreateImage (CxCore.cvGetSize src) 1 CxCore.iplDepth8u+ srcSize <- CxCore.getSize src+ target <- CxCore.createImage srcSize CxCore.iplDepth8u 1+ gray <- CxCore.createImage srcSize CxCore.iplDepth8u 1 return (gray, target) convertState = return . snd releaseState (gray, target) = do- CxCore.cvReleaseImage gray- CxCore.cvReleaseImage target+ CxCore.releaseImage gray+ CxCore.releaseImage target ------------------------------------------------------------------ @@ -185,24 +189,24 @@ -> CvSize -- ^ min size -> IOProcessor Image [CvRect] haarDetect cascadeFileName scaleFactor minNeighbors flags minSize = processor procFunc allocFunc convFunc freeFunc - where procFunc :: Image -> ([CvRect], (Ptr CvHaarClassifierCascade, Ptr CvMemStorage)) - -> IO ([CvRect], (Ptr CvHaarClassifierCascade, Ptr CvMemStorage))+ where procFunc :: Image -> ([CvRect], (HaarClassifierCascade, MemStorage)) + -> IO ([CvRect], (HaarClassifierCascade, MemStorage)) procFunc image (_, x@(cascade, storage)) = do- seqP <- CV.cvHaarDetectObjects image cascade storage (realToFrac scaleFactor) (fromIntegral minNeighbors) flags minSize+ seqP <- CV.haarDetectObjects image cascade storage (realToFrac scaleFactor) (fromIntegral minNeighbors) flags minSize recs <- CxCore.seqToList seqP return (recs, x) - allocFunc :: Image -> IO ([CvRect], (Ptr CvHaarClassifierCascade, Ptr CvMemStorage))+ allocFunc :: Image -> IO ([CvRect], (HaarClassifierCascade, MemStorage)) allocFunc _ = do- storage <- CxCore.cvCreateMemStorage 0- (cascade, name) <- CxCore.cvLoad cascadeFileName storage Nothing+ storage <- CxCore.createMemStorage 0+ (cascade, name) <- CxCore.load cascadeFileName storage Nothing print name -- todo verify that this is a haar cascade return ([], (cascade, storage)) convFunc = return . fst freeFunc (_, (_, storage)) = do- CxCore.cvReleaseMemStorage storage+ CxCore.releaseMemStorage storage -- todo release the cascade usign cvReleaseHaarClassifierCascade @@ -213,10 +217,10 @@ -- | OpenCV's cvRectangle, currently without width, color or line type control drawRects :: IOProcessor (Image, [CvRect]) Image-drawRects = processor procFunc (CxCore.cvCloneImage . fst) return CxCore.cvReleaseImage+drawRects = processor procFunc (CxCore.cloneImage . fst) return CxCore.releaseImage where procFunc (src,rects) dst = do- CxCore.cvCopy src dst- mapM_ (CxCore.cvRectangle dst) rects+ CxCore.copy src dst+ mapM_ (CxCore.rectangle dst) rects return dst
− src/Graphics/GraphicsProcessors.hs
@@ -1,43 +0,0 @@------------------------------------------------------------------- | --- Module : AI.CV.ImageProcessors--- Copyright : (c) Noam Lewis 2010--- License : BSD3------ Maintainer : Noam Lewis <jones.noamle@gmail.com>--- Stability : experimental--- Portability : tested on GHC only-------------------------------------------------------------------module Graphics.GraphicsProcessors where---import Control.Processor-import qualified Graphics.DrawingCombinators as Draw-import qualified Graphics.UI.SDL as SDL--type DrawRenderer a = IOSink (Draw.Image a)------------------------------------------------------------------------ | A window that displays images.-sdlWindow :: Int -> Int -> DrawRenderer a-sdlWindow width height = processor procFunc allocFunc return return- where procFunc :: (Draw.Image a -> () -> IO ())- procFunc image _ = do- Draw.clearRender image >> SDL.glSwapBuffers- return ()- - allocFunc :: (Draw.Image a -> IO ())- allocFunc firstImage = do- -- TODO: doh, this is global state! the processor should handle individual windows.- SDL.init [SDL.InitTimer, SDL.InitVideo]- -- resolution & color depth- SDL.setVideoMode width height 32 [SDL.OpenGL]- Draw.clearRender firstImage - SDL.glSwapBuffers- return ()---
− src/IntegratedTest.hs
@@ -1,70 +0,0 @@-{-# LANGUAGE FlexibleContexts #-}--module Main where---import qualified AI.CV.ImageProcessors as IP--import qualified Graphics.DrawingCombinators as Draw-import Graphics.DrawingCombinators((%%))-import qualified Graphics.GraphicsProcessors as GP--import qualified AI.CV.OpenCV.CV as CV-import qualified Control.Processor as Processor-import Control.Processor(scanlT, IOSource, IOProcessor, fir, trace, holdMaybe, revertAfterT)-import AI.CV.OpenCV.CxCore(CvRect(..), CvSize(..))--import Data.VectorSpace((*^), zeroV, (^+^), Scalar, VectorSpace)--import Prelude hiding ((.),id)-import Control.Arrow-import Control.Category-import Data.Monoid-import Data.Maybe(listToMaybe)--resX, resY :: Num a => a-resX = 160-resY = 120--resizer :: IP.ImageProcessor-resizer = IP.resize resX resY CV.CV_INTER_LINEAR--faceDetect :: IOProcessor IP.Image [CvRect]-faceDetect = IP.haarDetect "/usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml" 1.1 3 CV.cvHaarFlagNone (CvSize 20 20)- -captureDev :: IP.ImageSource---captureDev = videoFile "/tmp/video.flv" -- Many formats are supported, not just flv (FFMPEG-based, normally).---- If you have a webcam, uncomment this, and comment the other definition.-captureDev = IP.camera 0--square :: Draw.Image Any-square = Draw.rotate (pi/4) %% Draw.regularPoly (4 :: Int)--drawCvRect :: CvRect -> Draw.Image Any-drawCvRect (CvRect x y w h) = tr %% Draw.tint (Draw.Color 0 1 0 0.5) square- where tr = Draw.translate (1 - (2*x'/resX + w'/resX), 1 - (2*y'/resY + h'/resY))- `mappend` (Draw.scale (2*w'/resX) (2*h'/resY))- w' = fromIntegral w- h' = fromIntegral h- x' = fromIntegral x- y' = fromIntegral y- ---drawRects :: IP.ImageSink---drawRects = arr (mconcat . drawCvRects) --fmap (mconcat . map drawCvRect) id--- where drawCvRects = map drawCvRect--type DTime = Double--clock :: IO DTime -- = DClock Double-clock = return 1 -- todo implement really in some module that wraps SDL, GLUT or whatever.---main :: IO ()---main = Processor.runUntil (captureDev >>> resizer >>> averageFace >>> arr drawCvRect >>> sdlWindow) () (const . return $ False)-main = IP.runTillKeyPressed (captureDev >>> resizer >>> (id &&& averageFace) >>> (second (arr return)) >>> IP.drawRects >>> IP.window 0)- where averageFace = lastFace --fir [0.9,0.1] 1 clock lastFace- lastFace = revertAfterT 5 zeroV . holdMaybe zeroV clock $ (faceDetect >>> arr listToMaybe)- --sdlWindow = GP.sdlWindow resX resY - headOrZero [] = zeroV- headOrZero (v:vs) = v
src/Test.hs view
@@ -6,7 +6,6 @@ import qualified AI.CV.OpenCV.CV as CV import qualified Control.Processor as Processor import Control.Processor((--<))-import AI.CV.OpenCV.Types import AI.CV.OpenCV.CxCore(CvRect(..), CvSize(..)) import Prelude hiding ((.),id)@@ -19,8 +18,8 @@ edges :: ImageProcessor edges = canny 30 190 3 -faceDetect :: Processor.IOProcessor PImage [CvRect]-faceDetect = haarDetect "/usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml" 1.1 3 CV.cvHaarFlagNone (CvSize 20 20)+faceDetect :: Processor.IOProcessor Image [CvRect]+faceDetect = haarDetect "/usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml" 1.1 3 CV.haarFlagNone (CvSize 20 20) captureDev :: ImageSource --captureDev = videoFile "/tmp/video.flv" -- Many formats are supported, not just flv (FFMPEG-based, normally).