How to import the images into 2D array (one image per row)?

2 次查看（过去 30 天）
May
May 2017-2-18
评论： May 2017-2-19
I downloaded the DeepLearnToolbox-master and try to train the CNN. In the test_example_CNN.m,the train images are imported into 2D matrices (one image per row). I would like to train the CNN with my own images, but I don't know how to import the images into 2D array (one image per row). Please, explain me how to do it.
Thanks, May
% Load the MNIST hand-written digit dataset.
load mnist_uint8;
% Reshape the example digits back into 2D images.
%
% 'train_x' and 'test_x' begin as 2D matrices with one image per row.
% train_x [60000 x 784]
% test_x [10000 x 784]
%
% Also, rescale the pixel values from 0 - 255 to 0 - 1.
train_x = double(reshape(train_x',28,28,60000))/255;
test_x = double(reshape(test_x',28,28,10000))/255;
train_y = double(train_y');
test_y = double(test_y');
% You can use this command to display an example image. Note that the
% images need to be transposed in order to be oriented properly.
colormap gray;
imagesc(train_x(:, :, 105)');
axis square;

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2017-2-18
http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F
img = imread(TheFileName);
train_x(end+1,:) = reshape(img, 1, []);

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Recognition, Object Detection, and Semantic Segmentation 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by