En ligne · [ Standard ] · Linéaire+ Pfouuu, java me fait chier, là ...

[Gfx]

Installe l'extension PIL. Ca rulez pour traiter les images.

[momo]

ce serait trop facile du coup ...

[Poischack]

pff pourquoi faire facil quan don peut faire compliqué ?

[momo]

et pourquoi ne pas develloper sa propre librairie graphique en python ..

[momo]

CODE

from Tkinter import * def Dwords(files): temp1=ord(files.read(1))*256**0 temp2=ord(files.read(1))*256**1 temp3=ord(files.read(1))*256**2 temp4=ord(files.read(1))*256**3 return temp1+temp2+temp3+temp4 def Words(files): temp3=ord(files.read(1))*256**0 temp4=ord(files.read(1))*256**1 return temp3+temp4 def Read_Header_Bmp(bmpfile): text=bmpfile.read(2) print print bmpfile print "========BMP-Header Information========" if text=="BM": print "first Dword 'BM' : ok" else: print text bfSize=Dwords(bmpfile) print "File size in Dwords:", bfSize reserv1=Words(bmpfile) print "Must be zero:", if reserv1==0: print "ok" else: print "error" reserv2=Words(bmpfile) print "Must be zero:", if reserv2==0: print "ok" else: print "error" offbits=Dwords(bmpfile) print "Image data offset:",offbits info=Words(bmpfile) print "Info header=",info,"bytes" #Why Dwords are differents here ??? # it seems to be a .read error ... ??? temp1=ord(bmpfile.read(1))*256**2 temp2=ord(bmpfile.read(1))*256**3 temp3=ord(bmpfile.read(1))*256**0 temp4=ord(bmpfile.read(1))*256**1 width=temp1+temp2+temp3+temp4 print "Width=",width temp1=ord(bmpfile.read(1))*256**2 temp2=ord(bmpfile.read(1))*256**3 temp3=ord(bmpfile.read(1))*256**0 temp4=ord(bmpfile.read(1))*256**1 height=temp1+temp2+temp3+temp4 print "Height=",height temp1=ord(bmpfile.read(1))*256**2 temp2=ord(bmpfile.read(1))*256**3 temp3=ord(bmpfile.read(1))*256**0 temp4=ord(bmpfile.read(1))*256**1 planes=temp1+temp2+temp3+temp4 print "Must be '1':", if planes==1: print "ok" else: print "error" bitcount=Words(bmpfile) print "Bits per pixel:",bitcount compression=Dwords(bmpfile) print "Compression type:",compression sizeimage=Dwords(bmpfile) print "Image size in Bytes:",sizeimage xpxelpermeter=Dwords(bmpfile) print "Pixels per meter (X):",xpxelpermeter ypxelpermeter=Dwords(bmpfile) print "Pixels per meter (Y):",ypxelpermeter colorused=Dwords(bmpfile) if colorused==0: print "All colors used" else: print colorused,"colors used" colorimportant=Dwords(bmpfile) print colorimportant,"important color(s)" print "============End of header ============" return [width,height,bitcount,offbits,sizeimage] def Bmp_read_24(offbits,width,height,bmpfile,size): data=[] print bmpfile.tell() bmpfile.seek(0) bmpfile.seek(offbits) if bmpfile.tell()<>offbits: print "file error" for count in range(0,size,3): blue=ord(bmpfile.read(1)) green=ord(bmpfile.read(1)) red=ord(bmpfile.read(1)) data.append([red,green,blue]) return data # file=open("C:/Documents and Settings/momo1/Bureau/Python/Test.dat","rb") file=open("Test.dat","rb") bmpinfo=Read_Header_Bmp(file) if bmpinfo[2]==24: print "launch 24 bits decoding routine" bmpdata=Bmp_read_24(bmpinfo[3],bmpinfo[0],bmpinfo[1],file,bmpinfo[4]) file.close() print"file closed" root=Tk() bitmap=Canvas(width=bmpinfo[0],height=bmpinfo[1]) bitmap.pack() root.title("just a dumb test") counter=0 # need to find a less memory and cpu hungry method # a "raw" bitmap would be perfect for count1 in range(bmpinfo[1],0,-1): for count in range(bmpinfo[0]+1): color="#%02x%02x%02x" % (bmpdata[counter][0],bmpdata[counter][1],bmpdata[counter][2]) counter+=1 bitmap.create_line(count,count1,count,count1+1,fill=color) root.mainloop()

bon à part le fait que la mauvaise idée d'utiliser un canvas pour l'affichage en fait un gouffre cpu et ram, ça marche ... pour les bmp 24 bits ... du moins
( même s'il va falloir que je comprennes d'où vient mon pb avec le decodage Width et Height ... :/ )