Legacy ImageMagick Discussions Archive

Hi I am using IM to dynamically create a BMP to be used in another PHP module - PEAR Excel Spreadsheet that can only use BMPs.

I have the following commands:

Code: Select all

$aCmd[] = "convert " . $image . ' -resize 170x60 ' . '/home/' . $_SESSION['account_name'] . "/public_html/images/" . $imagename;
    $aCmd[] = "convert " . $image . ' -resize 170x60 ' . '/home/' . $_SESSION['account_name'] . '/public_html/images/kb_logo_web2.bmp';

And it creates a BMP just fine. The problem is that Excel Spreadsheet states either that the BMP is not 24 true colour or that the width exceeds 65kb. I am not asking for any help with Excel Spreadsheet but would like to get some help in understanding how the BMP is created and how to create a format I can use.

Thanks.
Z.

You may have to use Q32 IM compile to save images as 24bits as images in IM are stored to the bit depth of the compile (or less using -depth). But hopefully the IM folks will reply with more details or corrections here.

The BMP coder will, by default, output the most recent form of a bitmap header.
But you can force the coder to produce one of two earlier versions by prefixing the output filename with either "bmp3:" or "bmp2:" - e.g. 'bmp3:/public_html/images/kb_logo_web2.bmp'

Pete

Legacy ImageMagick Discussions Archive

Creating a 24-bit BMP

Creating a 24-bit BMP

Re: Creating a 24-bit BMP

Re: Creating a 24-bit BMP