IMAGEEDIT — Edit image

Edits the pixels of a raster image: invert, threshold, despeckle, rotate, mirror, colour depth and resample.

• Command: IMAGEEDIT · Global name: _IMAGEEDIT · Alias: IED
• Ribbon: Insert › Image and tracing

Edits the pixels of a raster image in the drawing. The edited image is saved to a new PNG file, next to the original (which is not touched), and the drawing image is relinked to that new file.

Usage

1. Enter IMAGEEDIT (or IED) or click the button.
2. Select the image.

Select the image to edit:

3. Choose the operation.

Enter the operation [Invert/Threshold/despecKle/Rotate/Mirror/Depth/reSample] <Invert>:

4. Depending on the operation, enter the value (threshold, degrees of rotation, axis, depth or resample factor).

Options

• Invert (I): negative of the image (keeps transparency).
• Threshold (T): black or white by luminance, at the threshold you enter (0-255).
• despecKle (K): cleans speckle noise with a 3×3 median.
• Rotate (R): rotates the image 90, 180 or 270 degrees.
• Mirror (M): horizontal or vertical mirror.
• Depth (D): colour depth (Mono, Grey or Colour).
• reSample (S): changes the resolution by a factor, keeping the size in the drawing.

Notes

• The original file is never changed: the edit goes to a new file <name>-ed.png.
• Rotate and resample change the size in pixels; the drawing frame is adjusted to the new size.
• Vectorization (raster to vector), PDF to DWG and OCR are not done here: they are a later step of the plan.

See also

IMAGECROP · IMAGEPERSP · IMAGEPAINT · IMAGEADJUST · Raster images