Image Watch插件学习笔记

来源：互联网发布：电子手抄报软件编辑：程序博客网时间：2024/04/29 18:27

VS插件，可以方便调试，观察图像！！！

http://research.microsoft.com/en-us/um/redmond/groups/ivm/imagewatchhelp/imagewatchhelp.htm#_Toc351981445

local模式和watch模式

local模式：只读模式 the Image List (B) gets automatically populated with all image-valued variables that are on the current stack frame.

Watch 模式,可以添加 image items are added manually by the user, e.g. by typing in image-valued expressions

可以移动和放大

可以编辑， Expressions can be cut (Ctrl+X, Ctrl+Delete), copied (Ctrl+C, Ctrl+Insert), and pasted (Ctrl+V, Shift+Insert),

Image watch支持的通道类型：

· INT8, UINT8

· INT16, UINT16

· INT32

· FLOAT16

· FLOAT32

· FLOAT64

也支持特殊的YUV格式：

NV12 (two planes: one Y plane, one packed UV plane, subsampled by 2 in both dimensions)
YV12 (three planes: one Y plane, one packed U and V plane each, both subsampled by 2 in both dimensions)
IYUV (same as YV12 but with U and V planes switched)
YUY2 (single plane, interleaved two-channel format: Y in the first channel; U and V subsampled by 2 horizontally and stored alternating in the second channel)

Image Watch还支持一系列简单的操作符，以@开始

一定是在watch模式下！

@band(img, number): extract channelnumber (UINT32) from img.
提取某一通道
@thresh(img, threshold): threshold pixels inimg: return 1 if >= threshold (FLOAT32) and 0 otherwise
阈值化操作
@clamp(img, min, max): clamp pixel values inimg to lie between min (FLOAT32) and max (FLOAT32).限制图像的范围在（min，max）之间
@abs(img): take absolute value of pixels inimg
求绝对值
@scale(img, factor): scale pixel values inimg by factor (FLOAT32)
对图像进行缩放
@norm8(img): scale pixels values inimg by 1/255
所有图像像素乘以1/255缩放
@norm16(img): scale pixels values inimg by 1/65535
所有图像像素乘以1/65535缩放
@fliph(img), @flipv(img), @flipd(img): flip img horizontally, vertically, and diagonally (matrix transpose), respectively.
水平(h)、垂直(v)或翻转或者图像转置（d）
@rot90(img), @rot180(img), @rot270(img):rotate img by 90, 180, 270 degrees clockwise, respectively.
图像旋转
@diff(img0, img1): return pixel-wise difference:img0 – img1
基于像素的差分
@file(path): load image frompath (string). Example: @file(“d:\temp\debug.png”)
加载图像
@mem(address, type, channels, width, height, stride): interpretraw memory as pixels, starting at address (UINT64), (UINT32). Example:@mem(myimg.data, UINT8, 1, 320, 240, 320) @mem(0x00000000003d1050,UINT8, 3, 256, 256, 768 );
将指定地址的内存数据转为图像像素信息显示

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