OpenCV(2.4.3)

core_c.h(drawing)

cvFont(scale,thickness)

cvLine(img,pt1,pt2,c,t,lt,s)

cvPutText(img,text,org,font,color)

cvRectangle(img,pt1,pt2,c,t,lt,s)

core_c.h(image)

cvCloneImage(img)

cvCopy(src,dst,mask)

cvCreateImage(size,depth,chs)

cvCvtColor(src,dst,code)

cvGet1D(arr,idx0)

cvGet2D(arr,idx0,idx1)

cvGetSize(arr)

cvSet(arr,val,mask)

cvSet1D(arr,idx0,val)

cvSet2D(arr,idx0,idx1,val)

cvSetZero(arr) // = cvZero

cvSmooth(src,dst,st,s1,s2,sg1,sg2)

core_c.h(logical)

cvAnd(src1,src2,dst,mask)

cvNot(src,dst)

cvOr(src1,src2,dst,mask)

types_c.h

CvArr

CvPoint
p = cvPoint(x,y)

CvScalar
s = cvScalar(v0,v1,v2,v3)
s = cvScalarAll(v)

CvSize
s = cvSize(w,h)

CvSeq

IplConvKernel

IplImage

Template

#include "opencv/cv.h"
#include "opencv/highgui.h"

int main(int argc,char** argv){
   IplImage *image 
    = cvLoadImage("foo.jpg",1);
   // your code
}

highgui.h

cvCreateTrackbar(n,wn,v,c,on_c)

cvLoadImage(file,iscolor)

cvSaveImage(file,img,params)

cvShowImage(name,img)

cvNamedWindows(name,flags)

cvWaitKey(delay)

imgproc_c.h

cvDilate(src,dst,kernel,s)

cvErode(src,dst,kernel,s)

cvFindContours(img,s,fc,hs,m,mt,o)

cvFloodFill(img,sp,nv,ld,ud,c,f,m)

cvCanny(img,edges,t1,t2,asize)

cvCreateHist(dims,ss,t,rs,uni)

cvCalcHist(img,hist,accum,mask)

cvMatchTemplate(img,tmpl,res,mthd)