1.1 What is 7yuv?

7yuv is a Raw Image Data and Hex Editor. The cryptic name comes from its capability to view raw YUV images.

7yuv will open files of any filetype and size, treating them as raw binary data. It can look at data in raw graphics, raw text or hex edit mode. Each mode comes with its own special set of functionality.

Key features of 7yuv

• Editing of large files (works with 64-bit file offsets)
• Raw graphics mode with wide selection of graphics formats: RGB, YUV, palette indexed, Amiga bit-planar
• Hex mode with 8, 16, 24, 32, 64-bit integers, little endian and big endian byte order
• Raw text mode with single byte, double byte or UCS4 encoding
• Savable raw graphics format presets
• Fast file seek and edit independent of filesize
• Fast custom rendering engine for text and graphics
• Bit-true editing without hidden conversions - data is treated as raw binary in any mode
• Palette editor with import and export
• Export image frames to BMP, JPEG, PNG, etc.
• Multiple views of the same file
• Configurable key mappings

What is Raw Image Data?

Raw image data is unpacked binary graphics data, as used in framebuffers and surfaces on your graphics card or mobile device. It is also the uncompressed output of video codecs. 7yuv is a neat tool to analyze this data after it was dumped into a file.

Some unpacked graphics fileformats also store pixels as raw image data. Example are unpacked BMP and RISC OS Sprite files. 7yuv will recognize and display image data from those file formats.