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CAD tip CAD tip # 7678:

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Q - question

Converting raster image to a matrix of pixels inside the DWG.

A - answer One of the functions of the AutoCAD add-on application CADstudio ImgConvert (see Download) is the conversion of raster images to individual pixels stored inside the DWG file. So you can digitize small pictures, which are difficult to vectorize (logo, photo) and insert them to the drawing more effectively and more reliably than OLE objects. All AutoCAD raster formats are supported (GIF, PNG, JPG, PCX, TIFF...).

See e.g. the sample photo heidi.jpg (100x75px). Attach it to your drawing with the IMAGEATTACH command. Load the ImgConvert application(NETLOAD) and run the command ImgConvert from the ribbon "CAD Studio". Choose the bitmap file and confirm the Color mode. The image will be converted to a block containing approx. 7600 individual pixels (solids). The size of your DWG file will grow about 190kB. Similarly you can also directly load/insert the image file as a pixel matrix - see the ImgInFile command.

Here is a comparison of a drawing with the original JPG image (left) and its copy converted to an internal block (right).

Compare images

This is a detail view of the converted image (one pixel selected):

Pixel matrix

You can also download the converted DWG drawing "Heidi in pixels" from the Block catalog.
100% *  CAD 
9.12.2010    23783×  
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applies to: AutoCAD 2012 · AutoCAD 2011 · AutoCAD 2010 ·

See also:
Tip 12609:Dynamo - how to convert a raster photo to 3D model in Revit?
Tip 12215:How to change truecolor DWG objects to indexed ACI colors?
Tip 7667:Automatically generated QR codes for DWG drawings.
Tip 5535:An effective way to bind raster images inside DWG files.
Tip 31:How to draw barcode in AutoCAD drawings?

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