代码之家 › 专栏 › 技术社区 › havakok

将图像插入MATLAB中的excel单元格

export-to-excel matlab image excel

havakok · 技术社区 · 7 年前

im 是矩阵而不是句柄:

print(im, '-dbitmap');

我需要为图像创建一个句柄吗?还有更好的方法吗?

最后,我想改变细胞,使其能够适应周围的图像(不改变图像的大小)。

2 回复 | 直到 7 年前

gnovice 7 年前

print 语句打印 figure window

image(im);                        % Plot image
set(gca, 'Visible', 'off', ...    % Turn off axes visibility
         'Position', [0 0 1 1]);  %   and make axes fill figure window
hFigure = gcf;                    % Get handle to figure
pos = get(hFigure, 'Position');   % Get current figure position
set(hFigure, 'Position', [pos(1:2) size(im, 2) size(im, 1)]);  % Set position so image
                                                               %   is scaled properly

create a COM server 并将图形打印到Excel文件中,如下所示:

excel = actxserver('Excel.Application');  % Create server object
excelWorkbook = excel.Workbooks.Add(1);   % Add a workbook
excelSheet = excel.ActiveSheet;           % Get the active sheet

dpi = get(groot, 'ScreenPixelsPerInch');  % Get screen dpi
print(hFigure, sprintf('-r%d', dpi), ...  % Print the figure at the screen resolution
      '-clipboard', '-dbitmap');          %   to the clipboard as a bitmap
excelSheet.Range('B2').PasteSpecial();    % Paste from clipboard (top left corner
                                          %   of image will be in the cell 'B2')

excelSheet.Range('B2').RowHeight = ...    % Set cell height to image height
  excelSheet.Shapes.Item(1).Height;
widthScale = excelSheet.Range('B2').ColumnWidth./...  % Column width (in characters)
             excelSheet.Range('B2').Width;            % Column width (in points)
excelSheet.Range('B2').ColumnWidth = ...  % Set cell width to scaled image width
  excelSheet.Shapes.Item(1).Width.*widthScale;

excelWorkbook.SaveAs('figtest.xlsx');  % Save workbook to a file
excelWorkbook.Close();                 % Close workbook
excel.Quit();                          % Quit server
excel.delete();                        % Delete server object

上面尝试缩放单元格以适应整个图像。这适用于行高,但由于某些原因,列宽处于禁用状态。由于列宽是根据字符定义的,图像宽度是根据点/英寸定义的,因此确定适当的缩放比例似乎有很多困难。我不确定是否有好的解决方法。

作为一个例子,下面是示例MATLAB图像的结果 'peppers.png' :

Sardar Usama 7 年前

_{gnovice

的

answer

. 写这个答案对我真的很有帮助。}

peppers.png 在牢房里 B2 :

im=imread('peppers.png');
imshow(im);

dpi = get(groot, 'ScreenPixelsPerInch');  % Get screen dpi
print(gcf, sprintf('-r%d', dpi), ...      % Print the figure at the screen resolution
      '-clipboard', '-dbitmap');          %   to the clipboard as a bitmap

excel = actxserver('Excel.Application');  % Create server object
excelWorkbook = excel.Workbooks.Add(1);   % Add a workbook
excelSheet = excel.ActiveSheet;           % Get the active sheet
excelSheet.Range('B2').PasteSpecial();    % Paste from clipboard (top left corner
                                          %   of image will be in the cell 'B2')   
%%%%%%%%%%%%%%%% My contribution %%%%%%%%%%%%%%%%
excelSheet.Shapes.Item(1).LockAspectRatio='msoFalse';            %Unlocking aspect ratio
excelSheet.Shapes.Item(1).Width=excelSheet.Range('B2').Width;    %Adjusting width
excelSheet.Shapes.Item(1).Height=excelSheet.Range('B2').Height;  %Adjusting height
%Uncomment the next line if you want the cell to keep the image fit in its particular 
%cell even if the size of the cell is changed later
% excelSheet.Shapes.Item(1).Placement='xlMoveandSize';
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

excelWorkbook.SaveAs('figtest.xlsx');     % Save workbook to a file
excelWorkbook.Close();                    % Close workbook
excel.Quit();                             % Quit server
excel.delete();                           % Delete server object

输出: