Tiff Compression Warning

Actualizado:octubre 12, 2025

Translated

View the article in English

When converting or working with TIFF files with IronOcr, users may encounter the following warning when running the process.

in-memory: Warning, incorrect count for field "JpegQTables" (0, expecting 1); tag ignored
in-memory: Warning, incorrect count for field "JpegDcTables" (0, expecting 1); tag ignored
in-memory: Warning, incorrect count for field "JpegAcTables" (0, expecting 1); tag ignored
in-memory: Warning, incorrect count for field "JpegQTables" (0, expecting 1); tag ignored
in-memory: Warning, incorrect count for field "JpegDcTables" (0, expecting 1); tag ignored
in-memory: Warning, incorrect count for field "JpegAcTables" (0, expecting 1); tag ignored
OJPEGSetupDecode: Warning, Depreciated and troublesome old-style JPEG compression mode, please convert to new-style JPEG compression and notify vendor of writing software

Explanation

These warnings are generated by ImageMagicik (via libtiff) when processing TIFF images that use older compression methods. It suggests using a new style of JPEG compression instead. For more information regarding this warning, please refer to this.

These warnings do not interfere with extracting text from images using OCR. The process will continue normally, and the warnings are purely informational. For future versions of IronOcr(v2025.5.x), we will disable the warnings to prevent clutter.

Curtis Chau

Chatea con el equipo de ingeniería ahora

Escritor Técnico

Curtis Chau tiene una licenciatura en Ciencias de la Computación (Carleton University) y se especializa en el desarrollo front-end con experiencia en Node.js, TypeScript, JavaScript y React. Apasionado por crear interfaces de usuario intuitivas y estéticamente agradables, disfruta trabajando con frameworks modernos y creando manuales bien ...

¿Listo para empezar?

Nuget Descargas 5,044,537 | Versión: 2025.11 recién lanzado