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Papers by mh rakib

Journal of Scientific Research, 2010

Image enhancement is one of the most important issues in low-level image processing. Histograms a... more Image enhancement is one of the most important issues in low-level image processing. Histograms are the basis for numerous spatial domain processing techniques. In this paper, we present a simple and effective method for image contrast enhancement based on global histogram equalization. In this method, at first input image is normalized by making the minimum gray level value to 0. Then the probability of each grey level is calculated from the available ROI grey levels. Finally, histogram equalization is performed on the input image based on the calculated probability density (or distribution) function. As a result, the mean brightness of the input image does not change significantly by the histogram equalization. Additionally, noise is prevented from being greatly amplified. Experimental results on medical images demonstrate that the proposed method can enhance the images effectively. The result is also compared with the result of image enhancement technique using local statistics....

Bangladesh Journal of Animal Science, 2014

The research was undertaken to determine the amounts of precipitate formed in the milk plasma due... more The research was undertaken to determine the amounts of precipitate formed in the milk plasma due to mixing of different levels of heated milk with raw milk, and to establish a turbidity index, which will be helpful as a field method in detecting the extent of addition of heated milk. The tests were conducted on five different treatments namely, Milk sample A (100% Heated milk), Milk sample B (75% Heated milk + 25% Raw milk), Milk sample C (50% Heated milk + 50% Raw milk), Milk sample D (25% Heated milk + 75% Raw milk) and Milk sample E (100% Raw milk). Samples were examined by chemical analysis including fat content, protein content, dry matter content, ash content, pH, acidity, turbidity test, and precipitation content of plasma. There was a highly significant difference (p<0.001) in case of fat, protein and precipitate contents of plasma as affected by extent of addition of heated milk. A statistically significant difference (p<0.05) was also found for ash content. On the o...

Bangladesh Journal of Animal Science, 2014

This research was conducted to test the feasibility of using date palm(Phoenix dactylifera L.) br... more This research was conducted to test the feasibility of using date palm(Phoenix dactylifera L.) brown sugar as an alternative to refined cane sugar in preparing sweet dahi. Quality assessment tests were conducted on four different types of dahi prepared by adding different levels of date palm brown sugar, such as 10% (A), 12% (B), 14% (C) and 12% refined cane sugar (D, as control). All the samples were analyzed for organoleptic, chemical and microbiological qualities. The scores for smell and taste, body and texture, color and appearance, and total scores for four types of dahi samples showed significant differences at various levels (p<0.01 to p<0.05). It was found that scores for all the organoleptic parameters of sample B were the highest among the samples, whereas sample D obtained the lowest scores. Total viable count of bacteria and coliform count, and sugar content, ash content, and protein content were differed significantly (p<0.01). Contents for fat also sho...

Proceedings of The New Era of Multi-Messenger Astrophysics — PoS(Asterics2019), 2019

The Cosmic-Ray Extremely Distributed Observatory (CREDO) uses the hunt for particle cascades from... more The Cosmic-Ray Extremely Distributed Observatory (CREDO) uses the hunt for particle cascades from deep space as a vehicle for a unique "bottom-up" approach to scientific research. By engaging the non-specialist public of all ages as "citizen scientists" we create opportunities for lifelong learning for individuals as well as for cooperation and the sharing of common educational tools amongst institutions. The discoveries of these citizen scientists will feed directly into a pioneering new area of scientific research oriented on Cosmic Ray Ensembles (CRE). The detection (or nondetection) of such particle groups promises to open up a new method for exploring our universe, and a new channel on the multi-messenger stage, oriented on both astro-and geo-investigations. The opportunities this would create for cross-disciplinary research are significant and beneficial for individuals, networks of institutions and the global communities of both professional scientists and science enthusiasts.

Bangladesh Journal of Livestock Research, 2020

The study was conducted to know the effect of different levels of pre and post-natal nutrition on... more The study was conducted to know the effect of different levels of pre and post-natal nutrition on the performances of ewes and their lambs until 1 year of age and the profitable slaughter age of lambs under semi intensive system. Twenty eight (28) native Bengal ewes at 7 weeks of gestation were randomly assigned to four groups (T0, T1, T2, T3) and supplemented with a concentrate mixture at 0.0, 1.0, 1.5, 2.0% of their body weight respectively. Ewes were allowed to graze 8 hours daily. Creep mixture (20 g/lamb/day) was provided to lambs from 2 weeks age with an increment of 10 g/lamb/week. After weaning, 20 growing male lambs were selected and reared 01 year of age with concentrate mixture at 1.5% of their body weight and 8 hours grazing irrespective of treatment groups. Parameters like, ewe’s litter size, daily milk yield, post-partum heat and lamb’s birth weight, weaning weight, live weight at 06, 09 and 12 months were recorded. The data were analyzed in an ANOVA with CRD by using ...

Journal of Scientific Research, 2010

Image enhancement is one of the most important issues in low-level image processing. Histograms a... more Image enhancement is one of the most important issues in low-level image processing. Histograms are the basis for numerous spatial domain processing techniques. In this paper, we present a simple and effective method for image contrast enhancement based on global histogram equalization. In this method, at first input image is normalized by making the minimum gray level value to 0. Then the probability of each grey level is calculated from the available ROI grey levels. Finally, histogram equalization is performed on the input image based on the calculated probability density (or distribution) function. As a result, the mean brightness of the input image does not change significantly by the histogram equalization. Additionally, noise is prevented from being greatly amplified. Experimental results on medical images demonstrate that the proposed method can enhance the images effectively. The result is also compared with the result of image enhancement technique using local statistics....

Bangladesh Journal of Animal Science, 2014

The research was undertaken to determine the amounts of precipitate formed in the milk plasma due... more The research was undertaken to determine the amounts of precipitate formed in the milk plasma due to mixing of different levels of heated milk with raw milk, and to establish a turbidity index, which will be helpful as a field method in detecting the extent of addition of heated milk. The tests were conducted on five different treatments namely, Milk sample A (100% Heated milk), Milk sample B (75% Heated milk + 25% Raw milk), Milk sample C (50% Heated milk + 50% Raw milk), Milk sample D (25% Heated milk + 75% Raw milk) and Milk sample E (100% Raw milk). Samples were examined by chemical analysis including fat content, protein content, dry matter content, ash content, pH, acidity, turbidity test, and precipitation content of plasma. There was a highly significant difference (p<0.001) in case of fat, protein and precipitate contents of plasma as affected by extent of addition of heated milk. A statistically significant difference (p<0.05) was also found for ash content. On the o...

Bangladesh Journal of Animal Science, 2014

This research was conducted to test the feasibility of using date palm(Phoenix dactylifera L.) br... more This research was conducted to test the feasibility of using date palm(Phoenix dactylifera L.) brown sugar as an alternative to refined cane sugar in preparing sweet dahi. Quality assessment tests were conducted on four different types of dahi prepared by adding different levels of date palm brown sugar, such as 10% (A), 12% (B), 14% (C) and 12% refined cane sugar (D, as control). All the samples were analyzed for organoleptic, chemical and microbiological qualities. The scores for smell and taste, body and texture, color and appearance, and total scores for four types of dahi samples showed significant differences at various levels (p<0.01 to p<0.05). It was found that scores for all the organoleptic parameters of sample B were the highest among the samples, whereas sample D obtained the lowest scores. Total viable count of bacteria and coliform count, and sugar content, ash content, and protein content were differed significantly (p<0.01). Contents for fat also sho...

Proceedings of The New Era of Multi-Messenger Astrophysics — PoS(Asterics2019), 2019

The Cosmic-Ray Extremely Distributed Observatory (CREDO) uses the hunt for particle cascades from... more The Cosmic-Ray Extremely Distributed Observatory (CREDO) uses the hunt for particle cascades from deep space as a vehicle for a unique "bottom-up" approach to scientific research. By engaging the non-specialist public of all ages as "citizen scientists" we create opportunities for lifelong learning for individuals as well as for cooperation and the sharing of common educational tools amongst institutions. The discoveries of these citizen scientists will feed directly into a pioneering new area of scientific research oriented on Cosmic Ray Ensembles (CRE). The detection (or nondetection) of such particle groups promises to open up a new method for exploring our universe, and a new channel on the multi-messenger stage, oriented on both astro-and geo-investigations. The opportunities this would create for cross-disciplinary research are significant and beneficial for individuals, networks of institutions and the global communities of both professional scientists and science enthusiasts.

Bangladesh Journal of Livestock Research, 2020

The study was conducted to know the effect of different levels of pre and post-natal nutrition on... more The study was conducted to know the effect of different levels of pre and post-natal nutrition on the performances of ewes and their lambs until 1 year of age and the profitable slaughter age of lambs under semi intensive system. Twenty eight (28) native Bengal ewes at 7 weeks of gestation were randomly assigned to four groups (T0, T1, T2, T3) and supplemented with a concentrate mixture at 0.0, 1.0, 1.5, 2.0% of their body weight respectively. Ewes were allowed to graze 8 hours daily. Creep mixture (20 g/lamb/day) was provided to lambs from 2 weeks age with an increment of 10 g/lamb/week. After weaning, 20 growing male lambs were selected and reared 01 year of age with concentrate mixture at 1.5% of their body weight and 8 hours grazing irrespective of treatment groups. Parameters like, ewe’s litter size, daily milk yield, post-partum heat and lamb’s birth weight, weaning weight, live weight at 06, 09 and 12 months were recorded. The data were analyzed in an ANOVA with CRD by using ...