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We measure the real‐space galaxy power spectrum on large scales at redshifts 0.5–1.2 using optical colour selected samples from the Canada–France–Hawaii Telescope Legacy Survey. With the redshift distributions measured with a preliminary ∼14 000 spectroscopic redshifts from the VIMOS Public Extragalactic Redshift Survey (VIPERS), we deproject the angular distribution and directly estimate the three‐dimensional power spectrum. We use a maximum likelihood estimator that is optimal for a Gaussian random field giving well‐defined window functions and error estimates. This measurement presents an initial look at the large‐scale structure field probed by the VIPERS. We measure the galaxy bias of the VIPERS‐like sample to be  b  g = 1.38 ± 0.05 (σ 8 = 0.8) on scales  k  &lt; 0.2  h  Mpc −1  averaged over 0.5 &lt;  z  &lt; 1.2. We further investigate three photometric redshift slices, and marginalizing over the bias factors while keeping other Λ cold dark matter parameters fixed, we find the matter density Ω m = 0.30 ± 0.06.

The power spectrum from the angular distribution of galaxies in the CFHTLS‐Wide fields at redshift ∼0.7