def make_image(redband,greenband,blueband,rows,cols,enhance):
if str(redband.dtype) == 'uint8':
dt = 1
elif str(redband.dtype) == 'uint16':
dt = 2
elif str(redband.dtype) == 'int16':
dt = 2
elif str(redband.dtype) == 'float32':
dt = 4
elif str(redband.dtype) == 'float64':
dt = 6
else:
print 'Unrecognized format'
return
redband = redband.tostring()
greenband = greenband.tostring()
blueband = blueband.tostring()
if enhance == 'linear255':
rng = [0.0,255.0]
else:
rng = None
if dt != 1:
redband = auxil.byte_stretch(redband,dtype=dt,rng=rng)
greenband = auxil.byte_stretch(greenband,dtype=dt,rng=rng)
blueband = auxil.byte_stretch(blueband,dtype=dt,rng=rng)
r,g,b = auxil.stretch(redband,greenband,blueband,enhance)
X = np.zeros((rows*cols,3),dtype=np.float32)
X[:,0] = np.float32(np.fromstring(r,dtype=np.uint8))
X[:,1] = np.float32(np.fromstring(g,dtype=np.uint8))
X[:,2] = np.float32(np.fromstring(b,dtype=np.uint8))
return np.reshape(X,(rows,cols,3))/255.
def dispms(filename=None,dims=None,rgb=None,enhance=None):
gdal.AllRegister()
if filename == None:
filename = auxil.select_infile(title='Choose an image to display')
if filename:
inDataset = gdal.Open(filename,GA_ReadOnly)
cols = inDataset.RasterXSize
rows = inDataset.RasterYSize
bands = inDataset.RasterCount
else:
return
if dims == None:
dims = auxil.select_dims([0,0,cols,rows])
if dims:
x0,y0,cols,rows = dims
else:
return
if rgb == None:
rgb = auxil.select_rgb(bands)
if rgb:
r,g,b = rgb
else:
return
if enhance == None:
enhance = auxil.select_enhance('3')
if enhance == '1':
enhance = 'linear255'
elif enhance == '2':
enhance = 'linear'
elif enhance == '3':
enhance = 'linear2pc'
elif enhance == '4':
enhance = 'equalization'
else:
return
redband = inDataset.GetRasterBand(r).ReadAsArray(x0,y0,cols,rows)
greenband = inDataset.GetRasterBand(g).ReadAsArray(x0,y0,cols,rows)
blueband = inDataset.GetRasterBand(b).ReadAsArray(x0,y0,cols,rows)
if str(redband.dtype) == 'uint8':
dt = 1
elif str(redband.dtype) == 'uint16':
dt = 2
elif str(redband.dtype) == 'int16':
dt = 2
elif str(redband.dtype) == 'float32':
dt = 4
elif str(redband.dtype) == 'float64':
dt = 6
else:
print 'Unrecognized format'
return
redband = redband.tostring()
greenband = greenband.tostring()
blueband = blueband.tostring()
if dt != 1:
redband = auxil.byte_stretch(redband,dtype=dt)
greenband = auxil.byte_stretch(greenband,dtype=dt)
blueband = auxil.byte_stretch(blueband,dtype=dt)
r,g,b = auxil.stretch(redband,greenband,blueband,enhance)
bip = ''
for i in range(cols*rows):
bip += r[i]+g[i]+b[i]
im = Image.fromstring('RGB', (cols,rows), bip, 'raw', ('RGB',3*cols,1))
print 'close image to finish'
im.show()
print 'done'
