Picture resolution. (x-directional pixels numx,y directional pixels numy)
Steps:
(1) Create a new TXT text document in the directory where the picture is placed, change the file name to be the same as the picture, and the extension to JGW (jpg), (TIF will be changed to TFW).
(2) Open a file with the extension *.JGW or *.TFW with Notepad and enter the following five lines in it:
Pixel resolution in the a=x direction
D= Rotary System
b= Rotary System
Pixel resolution in the direction of E=y
c= Raster map top left corner pixel Center x coordinate
f= Raster map top left corner Pixel Center y coordinate
(3) The final JGW or TFW file is as follows:
0.00000660260538641635
0
0
-0.00000531976744186073
120.582992
36.35405
Load the image with ArcGIS to see if it already has geographic coordinates.
Add geo-coordinate/planar Cartesian coordinates for TIF and JPG images