OpcodeList1 EXIF Tag (0xc740): Meaning & Values

Q: How do I see OpcodeList1 in a photo?

Run exiftool -OpcodeList1 photo.jpg, or open the file's info panel in Lightroom, Photoshop, Windows (Properties → Details) or macOS Preview (Tools → Show Inspector).

0xc740

Tag ID (51008 decimal)

SubIFD

IFD / group

undef~!

Data type

EXIF

Table

What OpcodeList1 means#

The OpcodeList1 tag stored in the SubIFD directory.

Defined values#

Value	Meaning
`1`	WarpRectilinear
`2`	WarpFisheye
`3`	FixVignetteRadial
`4`	FixBadPixelsConstant
`5`	FixBadPixelsList
`6`	TrimBounds
`7`	MapTable
`8`	MapPolynomial
`9`	GainMap
`10`	DeltaPerRow
`11`	DeltaPerColumn
`12`	ScalePerRow
`13`	ScalePerColumn
`14`	WarpRectilinear2

Read, write and remove it#

# read
exiftool -OpcodeList1 photo.jpg
# write
exiftool -OpcodeList1="…" photo.jpg
# remove
exiftool -OpcodeList1= photo.jpg
# all files in a folder, as CSV
exiftool -csv -OpcodeList1 -r ./photos > opcode-list1.csv

In Python with Pillow:

from PIL import Image
exif = Image.open("photo.jpg").getexif()
value = exif.get(0xc740)  # OpcodeList1
print(value)

Other SubIFD tags#

Frequently asked questions#

What is the EXIF tag ID of OpcodeList1?

0xc740 (51008 decimal), in the SubIFD directory.

How do I see OpcodeList1 in a photo?

Run exiftool -OpcodeList1 photo.jpg, or open the file's info panel in Lightroom, Photoshop, Windows (Properties → Details) or macOS Preview (Tools → Show Inspector).