
用image模块更直接,可以用getpixel获得像素值,给你个例子吧。
01#!/usr/bin/env python
02import Image
03import sys
04im = Imageopen(sysargv[1])
05width = imsize[0]
06height = imsize[1]
07print "/ width:%d /"%(width)
08print "/ height:%d /"%(height)
09count = 0
10for h in range(0, height):
11 for w in range(0, width):
12 pixel = imgetpixel((w, h))
13 for i in range(0,3):
14 count = (count+1)%16
15 if (count == 0):
16 print "0x%02x,/n"%(pixel[i]),
17 else:
18 print "0x%02x,"%(pixel[i]),
pBand->RasterIO获取某一波段数组,然后根据像素间的偏移去索引,估计就这种方式了,没有opencv处理起来好用,我们一般是gdal分块读了之后转成Mat,然后逐个处理。
Private Type BMP_File_Header
fileType As Integer
fileLength As Long
reserve As Long
offset As Long
End Type
Private Type BMP_Info_Header
infoLength As Long
width As Long
height As Long
plane As Integer
pixBits As Integer
compress As Long
dataLength As Long
H_res As Long
V_res As Long
colorNumber As Long
impColor As Long
End Type
Private Sub Form_Load()
Dim bfh As BMP_File_Header
Dim bih As BMP_Info_Header
Dim ct(3, 255) As Byte
Dim P(255, 255) As Byte
Dim i As Long, j As Long
bfhfileType = &H4D42
bfhoffset = Len(bfh) + Len(bih) + 4 256
bihdataLength = &H100& &H100&
bfhfileLength = bfhoffset + bihdataLength '文件大小
bihinfoLength = Len(bih)
bihwidth = 256 '宽度
bihheight = 256 '高度
bihplane = 1
bihpixBits = 8 '每像素位数
bihcompress = 0
bihH_res = &HB12
bihV_res = &HB12
bihcolorNumber = 256
bihimpColor = 0
For i = 0 To 255 '产生256级的灰度调色板
ct(0, i) = i
ct(1, i) = i
ct(2, i) = i
ct(3, i) = 0
Next
For j = 0 To 255 '这里是生成一个256256的位图数据,你有现成的数据就可直接用
For i = 0 To 255
P(i, j) = i
Next
Next
Open "d:\testbmp" For Binary As #1
Put #1, , bfh
Put #1, , bih
Put #1, , ct
Put #1, , P
Close #1
MsgBox "OK"
End Sub
用gdi+ 、OpenCV、cximge、freeimage等等库 都有方法加载图像,然后获取对象的像素:
比如用gdi+:
1、#include "GdiPlush"
#pragma comment(lib, "gdipluslib")
2、初始化gdi+(具体可以百度下:)
3、Bitmap image(文件名);
int w = imageGetWidth();
int h = imageGetHeight()。
以上就是关于使用python PIL处理图片。怎么获取图片的像素数据全部的内容,包括:使用python PIL处理图片。怎么获取图片的像素数据、图像处理之GDAL逐个像素值 *** 作的函数有没有、如何在VB中逐像素生成一个bmp文件等相关内容解答,如果想了解更多相关内容,可以关注我们,你们的支持是我们更新的动力!
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