www.gusucode.com > IPCV_Eval_Kit_R2019a_0ce6858工具箱源码程序matlab > IPCV_Eval_Kit_R2019a_0ce6858/code/demo_files/I3_01_2_GPGPU.m
%% GPU張棟 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % 弶婜愝掕 clc;close all;imtool close all;clear all; g=gpuDevice,reset(g); % GPU僨僶僀僗傊偺僆僽僕僃僋僩傪庢摼 a=imrotate(gpuArray(uint8(0)),1); % GPU梡娭悢偺儊儌儕乕傊偺撉崬傒 %% 夋憸偺撉崬傒丒昞帵 I = imread('saturn.png'); I1 = rgb2gray(repmat(I, 6,6)); % 廲墶 奺俇攞偺僒僀僘傊 figure;imshow(I1); %% CPU 忋偱偺張棟帪娫偺寁應丒昞帵 tic; I2 = imrotate(I1, 37, 'loose', 'bilinear'); % 戝偒側夋憸傪37亱夞揮 t1 = toc %% 寢壥偺昞帵 figure;imshow(I2); %% GPU傊僨乕僞傪僐僺乕 Ig1=gpuArray(I1); %% GPU 忋偱偺張棟帪娫偺寁應 tic; Ig2 = imrotate(Ig1, 37, 'loose', 'bilinear'); % 戝偒側夋憸傪37亱夞揮 wait(g) % 昁偢丄toc()傪屇傃弌偡慜偵丄偡傋偰偺張棟偑姰椆偡傞偺傪懸偮 t2 = toc %% 斾棪傪寁嶼 t1/t2 %% GPU 僨僶僀僗傪儕僙僢僩偟丄偦偺儊儌儕傪徚嫀偡傞 reset(g) %% Copyright 2014 The MathWorks, Inc.