A fashion student has threatened to take on Britain's biggest retailer after Tesco started selling children's jumpers featuring her picture without her permission.

Nicola Kirkbride was shocked when she discovered that a photograph she had posted on her blog had been printed on the front of a girl's sweater.

The sweater, which features an image of Kirkbride posing in a bohemian outfit and daisy chain hairpiece, has gone on sale in hundreds of Tescos around the country.

The 22-year-old, who lives in Scotland, told the Daily Mail: "I was flattered when I first heard that they had used my image on the sweater but I was also angry that no one had got in touch with me about it first.

"I was only made aware of it when a girl in England who works at Tesco tagged me on Twitter and said she had seen my face on one of the sweaters at her work."

The fourth-year fashion management student at Robert Gordon University in Aberdeen contacted the retail giant but had not received a response.

She warned she would take legal action for compensation for the use of the photo, although she hopes the issue can be sorted out amicably.

A spokeswoman for Tesco said: "We are looking into this and we are speaking to Nicola Kirkbride."