[inkscape] tips for trace grey scale image

 photo -> trace: Colors => upper layer

photo -> trace: brightness cutoff -> lower layer

[GIMP] grey scale & black and white (B&W)

  Image > Mode > Grayscale

=================================================================

B&W

1: Change the document color mode to Grayscale (Image > Mode > Grayscale)

or Remove saturation from the image’s colors (Colors > Saturation, set to 0)

2: Apply the Threshold filter

Colors > Threshold

3. Colors > Curves

Inkscape Beginners’ Guide

 https://inkscape-manuals.readthedocs.io/en/latest/index.html

[inkscape] multipages

https://www.youtube.com/watch?v=_CCsE1mxH8k 

inkscape grey white transparent background

File> Document properties > Checkerboard background

[inkscape]change specific colour to transparent

ctrl+f

 Find: fill:#8b723f

Find

click left bottom corner Fill: color box

change the alpha to 0

[gimp+inkscape] svg flat design to line path

 

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to

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use GIMP open the svg, 

Colors>Posterize,

Mode: Multiply,

export to png

open the png in inkscape,

select the image,

Path> trace bitmap,

Multicolor,

Detection mode: Colors,

Apply

move the new image,

remove the old image,

select the new image,

double click and remove the background,

select all part,

Object>Fill and stroke,

stroke paint,

click a blue box,

stoke style,

width: 20px,

Fill,

A: 0,

Join: the circle one

Cap: the circle one

---------

GIMP set language

 GIMP-2.8, you can do so through: Edit → Preferences → Interface.

[inkscape] Inverting colours (negative)

 Extensions > Colour > Negative

[Inkscape] How do I make a photo black and white?

  Colours section of the Extensions menu (for example, try Black & White, or possibly Desaturate or Grayscale) 

[inkscape] image to svg (png/jpg/bitmap/pixel to svg/path/vector) (trace bitmap)

select the Path⇒Trace Bitmap

[Inkscape] Positioning objects by center

 Align & Distribute from the Objects menu.

On this panel you can center a selected object to a page/another object/selection of objects.